Rank | Representative | Party | District | Seniority date | No.# of term(s) | Notes |
1 | Joshua R. Giddings | R | OH-20 | December 3, 1838 | 11th term | Dean of the House Left the House in 1859 while still serving in the House as a U.S. Congress member. |
2 | George W. Jones | D | TN-06 | March 4, 1843 | 08th term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
3 | Alexander H. Stephens | D | GA-08 | October 2, 1843 | 08th term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
4 | John S. Phelps | D | MO-06 | March 4, 1845 | 07th term |
5 | Thomas L. Clingman | D | NC-08 | March 4, 1847 Previous service, 1843–1845. | 07th term* | Resigned on May 7, 1858 while still serving in the Houseas a U.S. Congress member. |
6 | Thomas S. Bocock | D | VA-05 | March 4, 1847 | 06th term |
7 | Williamson R. W. Cobb | D | AL-06 | March 4, 1847 | 06th term |
8 | John McQueen | D | SC-01 | February 12, 1849 | 05th term |
9 | Henry Bennett | D | NY-21 | March 4, 1849 | 05th term |
10 | Lewis D. Campbell | D | OH-03 | March 4, 1849 | 05th term | Resigned on May 25, 1858 while still serving in the House as a U.S. Congress member. |
11 | Henry A. Edmundson | D | VA-12 | March 4, 1849 | 05th term |
12 | John Millson | D | VA-02 | March 4, 1849 | 05th term |
13 | James L. Orr | D | SC-05 | March 4, 1849 | 05th term | Speaker of the House Left the House in 1859 while still serving in the House as a U.S. Congress member. |
14 | Paulus Powell | D | VA-06 | March 4, 1849 | 05th term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
15 | John Caskie | D | VA-03 | March 4, 1851 | 04th term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
16 | Charles J. Faulkner | D | VA-08 | March 4, 1851 | 04th term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
17 | Thomas B. Florence | D | PA-01 | March 4, 1851 | 04th term |
18 | Galusha A. Grow | D | PA-14 | March 4, 1851 | 04th term |
19 | George S. Houston | D | AL-05 | March 4, 1851 Previous service, 1841–1849. | 08th term* |
20 | John Letcher | D | VA-09 | March 4, 1851 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
21 | Israel Washburn, Jr. | R | ME-05 | March 4, 1851 | 03rd term |
22 | Nathaniel P. Banks | D | MA-07 | March 4, 1853 | 03rd term | Resigned on December 24, 1857 while still serving in the House as a U.S. Congress member. |
23 | William Barksdale | D | MS-03 | March 4, 1853 | 03rd term |
24 | William W. Boyce | D | SC-06 | March 4, 1853 | 03rd term |
25 | Samuel Caruthers | D | MO-07 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
26 | Francis B. Craige | D | NC-07 | March 4, 1853 | 03rd term |
27 | John Dick | R | PA-25 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
28 | James F. Dowdell | D | AL-03 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
29 | John M. Elliott | D | KY-06 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
30 | William H. English | D | IN-02 | March 4, 1853 | 03rd term |
31 | William Goode | D | VA-04 | March 4, 1853 Previous service, 1841–1843. | 04th term* |
32 | Alfred B. Greenwood | D | AR-01 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
33 | Aaron Harlan | R | OH-07 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
34 | Orsamus B. Matteson | R | NY-20 | March 4, 1853 | 03rd term |
35 | Edwin B. Morgan | R | NY-25 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
36 | Matthias H. Nichols | D | OH-04 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
37 | Charles Ready | D | TN-05 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
38 | David Ritchie | W | PA-21 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
39 | Thomas H. Ruffin | D | NC-02 | March 4, 1853 | 03rd term |
40 | James L. Seward | D | GA-01 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
41 | Samuel A. Smith | D | TN-03 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
42 | William Smith | D | VA-07 | March 4, 1853 Previous service, 1841–1843. | 04th term* |
43 | Edward Wade | R | OH-19 | March 4, 1853 | 03rd term |
44 | Elihu B. Washburne | R | IL-01 | March 4, 1853 | 03rd term |
45 | Felix Zollicoffer | D | TN-08 | March 4, 1853 | 03rd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
46 | Jehu G. Jones | D | PA-08 | February 4, 1854 Previous service, 1851–1853. | 04th term* | Resigned on October 30, 1858 while still serving in the House as a U.S. Congress member. |
47 | Philemon Bliss | R | OH-14 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
48 | Charles Billinghurst | D | WI-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
49 | John Bingham | R | OH-21 | March 4, 1855 | 02nd term |
50 | Thomas F. Bowie | D | MD-06 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
51 | Lawrence O'Bryan Branch | D | NC-04 | March 4, 1855 | 02nd term |
52 | Samuel Brenton | R | IN-10 | March 4, 1855 | 02nd term | Died on March 29, 1857 while still serving in the House as a U.S. Congress member. |
53 | James Buffington | R | MA-02 | March 4, 1855 | 02nd term |
54 | Anson Burlingame | KN | MA-05 | March 4, 1855 | 02nd term |
55 | Henry C. Burnett | D | KY-01 | March 4, 1855 | 02nd term |
56 | Calvin C. Chaffee | R | MA-10 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
57 | Ezra Clark, Jr. | KN | CT-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
58 | Isaiah D. Clawson | R | NJ-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
59 | Schuyler Colfax | R | IN-09 | March 4, 1855 | 02nd term |
60 | Linus B. Comins | R | MA-04 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
61 | John Covode | W | PA-19 | March 4, 1855 | 02nd term |
62 | Aaron H. Cragin | R | NH-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
63 | Martin J. Crawford | D | GA-02 | March 4, 1855 | 02nd term |
64 | William S. Damrell | R | MA-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
65 | Thomas G. Davidson | D | LA-03 | March 4, 1855 | 02nd term |
66 | Timothy Davis | KN | MA-06 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
67 | Henry W. Davis | D | MD-04 | March 4, 1855 | 02nd term |
68 | Sidney Dean | R | CT-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
69 | Edward Dodd | D | NY-15 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
70 | Nathan B. Durfee | KN | RI-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
71 | John Rufus Edie | D | PA-18 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
72 | George Eustis, Jr. | KN | LA-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
73 | Amos P. Granger | D | NY-24 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
74 | Robert B. Hall | R | MA-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
75 | John Hickman | D | PA-06 | March 4, 1855 | 02nd term |
76 | James M. Harris | D | MD-03 | March 4, 1855 | 02nd term |
77 | Thomas L. Harris | D | IL-06 | March 4, 1855 Previous service, 1849–1851. | 02nd term* | Died on November 24, 1858 while still serving in the House as a U.S. Congress member. |
78 | Valentine B. Horton | D | OH-11 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
79 | William A. Howard | R | MI-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
80 | Joshua Jewett | D | KY-05 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
81 | John Kelly | D | NY-04 | March 4, 1855 | 02nd term | Died on December 25, 1858 while still serving in the House as a U.S. Congress member. |
82 | William H. Kelsey | R | NY-28 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
83 | Chauncey L. Knapp | R | MA-08 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
84 | John C. Kunkel | D | PA-10 | March 4, 1855 | 02nd term |
85 | Benjamin F. Leiter | R | OH-18 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
86 | Humphrey Marshall | KN | KY-07 | March 4, 1855 Previous service, 1849–1852. | 04th term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
87 | Samuel S. Marshall | D | IL-09 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
88 | Justin S. Morrill | R | VT-02 | March 4, 1855 | 02nd term |
89 | Richard Mott | D | OH-05 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
90 | Ambrose S. Murray | D | NY-10 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
91 | John M. Parker | R | NY-27 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
92 | John U. Pettit | R | IN-11 | March 4, 1855 | 02nd term |
93 | James Pike | KN | NH-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
94 | Samuel Anderson Purviance | R | PA-22 | March 4, 1855 | 02nd term | Left the House in 1855 while still serving in the House as a U.S. Congress member. |
95 | John A. Quitman | D | MS-05 | March 4, 1855 | 02nd term | Died on July 17, 1858 while still serving in the House as a U.S. Congress member. |
96 | James B. Ricaud | KN | MD-02 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
97 | George R. Robbins | R | NJ-02 | March 4, 1855 | 02nd term |
98 | Anthony E. Roberts | D | PA-09 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
99 | John M. Sandidge | D | LA-04 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
100 | John H. Savage | D | TN-04 | March 4, 1855 Previous service, 1849–1853. | 04th term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
101 | John Sherman | R | OH-13 | March 4, 1855 | 02nd term |
102 | Eli S. Shorter | D | AL-02 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
103 | Francis E. Spinner | R | NY-17 | March 4, 1855 | 02nd term |
104 | Benjamin Stanton | R | OH-08 | March 4, 1855 Previous service, 1851–1853. | 03rd term* |
105 | James A. Stewart | R | MD-01 | March 4, 1855 | 02nd term |
106 | Albert G. Talbott | D | KY-04 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
107 | Mason Tappan | R | NH-02 | March 4, 1855 | 02nd term |
108 | Miles Taylor | D | LA-02 | March 4, 1855 | 02nd term |
109 | Robert P. Trippe | KN | GA-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
110 | Warner Underwood | KN | KY-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
111 | David S. Walbridge | R | MI-03 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
112 | Henry Waldron | R | MI-02 | March 4, 1855 | 02nd term |
113 | Cadwallader C. Washburn | R | WI-02 | March 4, 1855 | 02nd term |
114 | Albert G. Watkins | D | TN-01 | March 4, 1855 Previous service, 1849–1853. | 04th term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
115 | Warren Winslow | D | NC-03 | March 4, 1855 | 02nd term |
116 | John M. Wood | R | ME-01 | March 4, 1855 | 02nd term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
117 | John V. Wright | D | TN-07 | March 4, 1855 | 02nd term |
118 | Laurence M. Keitt | D | SC-03 | August 6, 1856 | 02nd term |
119 | Muscoe R.H. Garnett | D | VA-01 | December 1, 1856 | 02nd term |
120 | Nehemiah Abbott | R | ME-03 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
121 | Garnett Adrain | D | NJ-03 | March 4, 1857 | 01st term |
122 | John Alexander Ahl | D | PA-16 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
123 | Thomas L. Anderson | D | MO-02 | March 4, 1857 | 01st term |
124 | Samuel G. Andrews | R | NY-29 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
125 | Samuel Arnold | D | CT-02 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
126 | William T. Avery | D | TN-10 | March 4, 1857 | 01st term |
127 | John DeWitt Clinton Atkins | D | TN-09 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
128 | William D. Bishop | D | CT-04 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
129 | Francis P. Blair, Jr. | D | MO-01 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
130 | Milledge L. Bonham | D | SC-04 | March 4, 1857 | 01st term |
131 | Guy M. Bryan | D | TX-02 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
132 | William D. Brayton | R | RI-02 | March 4, 1857 | 01st term |
133 | Joseph Burns | D | OH-15 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
134 | Silas M. Burroughs | R | NY-31 | March 4, 1857 | 01st term |
135 | Henry Chapman | KN | PA-07 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
136 | Horace F. Clark | D | NY-08 | March 4, 1857 | 01st term |
137 | James B. Clay | KN | KY-08 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
138 | Sherrard Clemens | D | VA-10 | March 4, 1857 | 01st term |
139 | Clark B. Cochrane | R | NY-18 | March 4, 1857 | 01st term |
140 | John Cochrane | D | NY-06 | March 4, 1857 | 01st term |
141 | Joseph R. Cockerill | D | OH-06 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
142 | Erastus Corning | D | NY-14 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
143 | Samuel S. Cox | D | OH-12 | March 4, 1857 | 01st term |
144 | James Craig | D | MO-04 | March 4, 1857 | 01st term |
145 | Jabez Lamar Monroe Curry | D | AL-07 | March 4, 1857 | 01st term |
146 | Samuel R. Curtis | R | IA-01 | March 4, 1857 | 01st term |
147 | John G. Davis | D | IN-07 | March 4, 1857 Previous service, 1851–1855. | 03rd term* |
148 | Reuben Davis | D | MS-02 | March 4, 1857 | 01st term |
149 | Timothy Davis | R | IA-02 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
150 | Henry L. Dawes | R | MA-11 | March 4, 1857 | 01st term |
151 | William L. Dewart | D | PA-11 | March 4, 1857 | 01st term |
152 | William H. Dimmick | D | PA-13 | March 4, 1857 | 01st term |
153 | John F. Farnsworth | R | IL-02 | March 4, 1857 | 01st term |
154 | Reuben Fenton | R | NY-33 | March 4, 1857 Previous service, 1853–1855. | 02nd term* |
155 | James B. Foley | D | IN-04 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
156 | Stephen C. Foster | R | ME-06 | March 4, 1857 | 01st term |
157 | Lucius J. Gartrell | R | GA-04 | March 4, 1857 | 01st term |
158 | James L. Gillis | D | PA-24 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
159 | Charles J. Gilman | R | ME-02 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
160 | John A. Gilmer | R | NC-05 | March 4, 1857 | 01st term |
161 | William S. Groesbeck | D | OH-02 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
162 | Henry C. Goodwin | R | NY-22 | March 4, 1857 Previous service, 1854–1855. | 02nd term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
163 | James M. Gregg | D | IN-06 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
164 | Lawrence W. Hall | D | OH-09 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
165 | John B. Haskin | D | NY-09 | March 4, 1857 | 01st term |
166 | Israel T. Hatch | D | NY-32 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
167 | George S. Hawkins | D | FL | March 4, 1857 | 01st term |
168 | Joshua Hill | R | GA-07 | March 4, 1857 | 01st term | Resigned on January 23, 1861 while still serving in the House as a U.S. Congress member. |
169 | Charles B. Hoard | R | NY-23 | March 4, 1857 | 01st term |
170 | George W. Hopkins | D | VA-13 | March 4, 1857 Previous service, 1835–1847. | 07th term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
171 | James Hughes | D | IN-03 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
172 | John Huyler | D | NJ-04 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
173 | James Jackson | D | GA-06 | March 4, 1857 | 01st term |
174 | Albert G. Jenkins | D | VA-11 | March 4, 1857 | 01st term |
175 | Owen Jones | D | PA-05 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
176 | William Kellogg | R | IL-04 | March 4, 1857 | 01st term |
177 | David Kilgore | R | IN-05 | March 4, 1857 | 01st term |
178 | Jacob M. Kunkel | D | MD-05 | March 4, 1857 | 01st term |
179 | Lucius Q. C. Lamar II | R | MS-01 | March 4, 1857 | 01st term |
180 | James Landy | D | PA-03 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
181 | William Lawrence | D | OH-17 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
182 | Dewitt C. Leach | R | MI-04 | March 4, 1857 | 01st term |
183 | James Lockhart | D | IN-01 | March 4, 1857 Previous service, 1851–1853. | 02nd term* | Died on September 7, 1857 while still serving in the House as a U.S. Congress member. |
184 | Owen Lovejoy | R | IL-03 | March 4, 1857 | 01st term |
185 | William B. Maclay | D | NY-05 | March 4, 1857 Previous service, 1843–1849. | 04th term* |
186 | John C. Mason | D | KY-09 | March 4, 1857 Previous service, 1849–1853. | 03rd term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
187 | Horace Maynard | D | TN-02 | March 4, 1857 | 01st term |
188 | Joseph C. McKibbin | D | CA | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
189 | William P. Miles | D | SC-02 | March 4, 1857 | 01st term |
190 | Joseph Miller | D | OH-10 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
191 | John G. Montgomery | D | PA-12 | March 4, 1857 | 01st term | Died on April 24, 1857 while still serving in the House as a U.S. Congress member. |
192 | William Montgomery | W | PA-20 | March 4, 1857 | 01st term |
193 | Sydenham Moore | D | AL-04 | March 4, 1857 | 01st term |
194 | Edward J. Morris | R | PA-02 | March 4, 1857 Previous service, 1843–1845. | 02nd term* |
195 | Isaac N. Morris | D | IL-05 | March 4, 1857 | 01st term |
196 | Freeman H. Morse | R | ME-04 | March 4, 1857 Previous service, 1843–1845. | 02nd term* |
197 | Oliver A. Morse | R | NY-19 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
198 | Abram B. Olin | D | NY-13 | March 4, 1857 | 01st term |
199 | George W. Palmer | R | NY-16 | March 4, 1857 | 01st term |
200 | George H. Pendleton | D | OH-01 | March 4, 1857 | 01st term |
201 | Samuel Peyton | D | KY-02 | March 4, 1857 Previous service, 1847–1849. | 02nd term* |
202 | Henry M. Phillips | D | PA-04 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
203 | John F. Potter | R | WI-01 | March 4, 1857 | 01st term |
204 | Emory B. Pottle | R | NY-26 | March 4, 1857 | 01st term |
205 | John Henninger Reagan | D | TX-01 | March 4, 1857 | 01st term |
206 | Wilson Reilly | D | PA-17 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
207 | Homer E. Royce | R | VT-03 | March 4, 1857 | 01st term |
208 | William F. Russell | D | NY-11 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
209 | Alfred M. Scales | D | NC-06 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
210 | Charles L. Scott | D | CA | March 4, 1857 | 01st term |
211 | John A. Searing | D | NY-01 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
212 | Aaron Shaw | D | IL-07 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
213 | Henry M. Shaw | D | NC-01 | March 4, 1857 Previous service, 1853–1855. | 02nd term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
214 | Daniel Sickles | D | NY-03 | March 4, 1857 | 01st term |
215 | Otho R. Singleton | D | MS-04 | March 4, 1857 Previous service, 1853–1855. | 02nd term* |
216 | Judson W. Sherman | R | NY-30 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
217 | Robert Smith | D | IL-08 | March 4, 1857 Previous service, 1843–1849. | 04th term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
218 | James A. Stallworth | D | AL-01 | March 4, 1857 | 01st term |
219 | William Stewart | R | PA-23 | March 4, 1857 | 01st term |
220 | John W. Stevenson | D | KY-10 | March 4, 1857 | 01st term |
221 | George Taylor | D | NY-02 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
222 | Eli Thayer | R | MA-09 | March 4, 1857 | 01st term |
223 | John Thompson | R | NY-12 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
224 | Cydnor B. Tompkins | R | OH-16 | March 4, 1857 | 01st term |
225 | Eliakim P. Walton | R | VT-01 | March 4, 1857 | 01st term |
226 | Elijah Ward | D | NY-07 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
227 | Edward A. Warren | D | AR-02 | March 4, 1857 Previous service, 1853–1855. | 02nd term* | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
228 | James Wilson | R | IN-08 | March 4, 1857 | 01st term |
229 | Allison White | D | PA-15 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
230 | William G. Whiteley | D | DE | March 4, 1857 | 01st term |
231 | Augustus R. Wright | D | GA-05 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
232 | Samuel H. Woodson | KN | MO-05 | March 4, 1857 | 01st term |
233 | Jacob R. Wortendyke | D | NJ-05 | March 4, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
| Charles Case | R | IN-10 | December 7, 1857 | 01st term |
| John B. Clark | D | MO-03 | December 7, 1857 | 01st term |
| Paul Leidy | D | PA-12 | December 7, 1857 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
| William E. Niblack | D | IN-01 | December 7, 1857 | 01st term |
| Daniel W. Gooch | R | MA-07 | January 31, 1858 | 01st term |
| James M. Cavanaugh | D | MN-01 | May 11, 1858 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
| William W. Phelps | D | MN-02 | May 11, 1858 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
| Clement Vallandigham | D | OH-03 | May 25, 1858 | 01st term |
| William H. Keim | D | PA-08 | December 7, 1858 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
| John J. McRae | D | MS-05 | December 7, 1858 | 01st term |
| Zebulon B. Vance | R | NC-08 | December 7, 1858 | 01st term |
| Charles D. Hodges | D | IL-06 | January 4, 1859 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |
| Thomas J. Barr | D | NY-04 | January 17, 1859 | 01st term |
| La Fayette Grover | D | OR | February 14, 1859 | 01st term | Left the House in 1859 while still serving in the House as a U.S. Congress member. |