Rank | Representative | Party | District | Seniority date | No.# of term(s) | Notes |
1 | Elihu B. Washburne | R | IL-03 | March 4, 1853 | 08th term | Dean of the House |
2 | Schuyler Colfax | R | IN-09 | March 4, 1855 | 07th term | Speaker of the House Left the House in 1869. |
3 | Henry L. Dawes | R | MA-10 | March 4, 1857 | 06th term |
4 | James M. Ashley | R | OH-10 | March 4, 1859 | 05th term | Left the House in 1869. |
5 | Thomas D. Eliot | R | MA-01 | March 4, 1859 Previous service, 1854–1855. | 06th term* | Left the House in 1869. |
6 | James K. Moorhead | R | PA-22 | March 4, 1859 | 05th term |
7 | Thaddeus Stevens | R | PA-09 | March 4, 1859 Previous service, 1849–1853. | 07th term* | Died on August 11, 1868. |
8 | William Windom | R | MN-01 | March 4, 1859 | 05th term | Left the House in 1869. |
9 | Fernando C. Beaman | R | MI-01 | March 4, 1861 | 04th term |
10 | George W. Julian | D | IN-05 | March 4, 1861 Previous service, 1849–1851. | 05th term* |
11 | William D. Kelley | R | PA-04 | March 4, 1861 | 04th term |
12 | Frederick A. Pike | R | ME-06 | March 4, 1861 | 04th term | Left the House in 1869. |
13 | Theodore M. Pomeroy | R | NY-24 | March 4, 1861 | 04th term | Speaker after Colfax resigned. Left the House in 1869. |
14 | Francis Thomas | R | MD-04 | March 4, 1861 Previous service, 1831–1841. | 09th term* | Left the House in 1869. |
15 | James F. Wilson | R | IA-01 | October 8, 1861 | 04th term | Left the House in 1869. |
16 | Samuel Hooper | R | MA-04 | December 2, 1861 | 04th term |
17 | William B. Allison | R | IA-03 | March 4, 1863 | 03rd term |
18 | Oakes Ames | R | MA-02 | March 4, 1863 | 03rd term |
19 | John D. Baldwin | R | MA-08 | March 4, 1863 | 03rd term | Left the House in 1869. |
20 | James G. Blaine | R | ME-03 | March 4, 1863 | 03rd term |
21 | George S. Boutwell | D | MA-07 | March 4, 1863 | 03rd term | Left the House in 1869. |
22 | John Martin Broomall | R | PA-07 | March 4, 1863 | 03rd term | Left the House in 1869. |
23 | John W. Chanler | D | NY-07 | March 4, 1863 | 03rd term | Left the House in 1869. |
24 | Amasa Cobb | R | WI-03 | March 4, 1863 | 03rd term |
25 | Charles Denison | D | PA-12 | March 4, 1863 | 03rd term | Died on June 27, 1867. |
26 | Nathan F. Dixon II | R | RI-02 | March 4, 1863 Previous service, 1849–1851. | 04th term* |
27 | Ignatius L. Donnelly | R | MN-02 | March 4, 1863 | 03rd term | Left the House in 1869. |
28 | John F. Driggs | R | MI-06 | March 4, 1863 | 03rd term | Left the House in 1869. |
29 | Ephraim R. Eckley | R | OH-17 | March 4, 1863 | 03rd term | Left the House in 1869. |
30 | Charles A. Eldredge | D | WI-04 | March 4, 1863 | 03rd term |
31 | John F. Farnsworth | R | IL-02 | March 4, 1863 Previous service, 1857–1861. | 05th term* |
32 | James A. Garfield | R | OH-19 | March 4, 1863 | 03rd term |
33 | John A. Griswold | D | NY-15 | March 4, 1863 | 03rd term | Left the House in 1869. |
34 | William Higby | R | CA-02 | March 4, 1863 | 03rd term | Left the House in 1869. |
35 | Asahel W. Hubbard | R | IA-06 | March 4, 1863 | 03rd term | Left the House in 1869. |
36 | Calvin T. Hulburd | R | NY-17 | March 4, 1863 | 03rd term | Left the House in 1869. |
37 | Thomas Jenckes | R | RI-01 | March 4, 1863 | 03rd term |
38 | Benjamin F. Loan | R | MO-07 | March 4, 1863 | 03rd term | Left the House in 1869. |
39 | James M. Marvin | R | NY-18 | March 4, 1863 | 03rd term | Left the House in 1869. |
40 | Joseph W. McClurg | R | MO-05 | March 4, 1863 | 03rd term | Resigned in July 1868. |
41 | Leonard Myers | R | PA-03 | March 4, 1863 | 03rd term |
42 | Godlove Stein Orth | D | IN-08 | March 4, 1863 | 03rd term |
43 | Charles O'Neill | R | PA-02 | March 4, 1863 | 03rd term |
44 | Sidney Perham | R | ME-02 | March 4, 1863 | 03rd term | Left the House in 1869. |
45 | Hiram Price | R | IA-02 | March 4, 1863 | 03rd term | Left the House in 1869. |
46 | Samuel J. Randall | D | PA-01 | March 4, 1863 | 03rd term |
47 | Lewis W. Ross | D | IL-09 | March 4, 1863 | 03rd term | Left the House in 1869. |
48 | Robert C. Schenck | D | OH-03 | March 4, 1863 Previous service, 1843–1851. | 07th term* |
49 | Glenni W. Scofield | R | PA-19 | March 4, 1863 | 03rd term |
50 | Rufus P. Spalding | R | OH-18 | March 4, 1863 | 03rd term | Left the House in 1869. |
51 | Charles Upson | R | MI-02 | March 4, 1863 | 03rd term | Left the House in 1869. |
52 | William B. Washburn | R | MA-09 | March 4, 1863 | 03rd term |
53 | Thomas Williams | R | PA-23 | March 4, 1863 | 03rd term | Left the House in 1869. |
54 | Frederick E. Woodbridge | R | VT-01 | March 4, 1863 | 03rd term | Left the House in 1869. |
55 | Ebon C. Ingersoll | R | IL-05 | May 20, 1864 | 03rd term |
56 | Delos R. Ashley | R | NV | March 4, 1865 | 02nd term | Left the House in 1869. |
57 | George W. Anderson | R | MO-09 | March 4, 1865 | 02nd term | Left the House in 1869. |
58 | Jehu Baker | R | IL-12 | March 4, 1865 | 02nd term | Left the House in 1869. |
59 | John F. Benjamin | R | MO-08 | March 4, 1865 | 02nd term |
60 | John Bingham | R | OH-16 | March 4, 1865 Previous service, 1855–1863. | 06th term* |
61 | Henry P. H. Bromwell | D | IL-07 | March 4, 1865 | 02nd term | Left the House in 1869. |
62 | Benjamin M. Boyer | D | PA-06 | March 4, 1865 | 02nd term | Left the House in 1869. |
63 | Ralph P. Buckland | R | OH-09 | March 4, 1865 | 02nd term | Left the House in 1869. |
64 | Reader W. Clarke | D | OH-06 | March 4, 1865 | 02nd term | Left the House in 1869. |
65 | Sidney Clarke | R | KS | March 4, 1865 | 02nd term |
66 | Burton C. Cook | D | IL-06 | March 4, 1865 | 02nd term |
67 | Shelby M. Cullom | R | IL-08 | March 4, 1865 | 02nd term |
68 | Benjamin Eggleston | R | OH-01 | March 4, 1865 | 02nd term | Left the House in 1869. |
69 | Thomas W. Ferry | R | MI-04 | March 4, 1865 | 02nd term |
70 | Adam J. Glossbrenner | R | PA-15 | March 4, 1865 | 02nd term | Left the House in 1869. |
71 | Abner C. Harding | R | IL-04 | March 4, 1865 | 02nd term | Left the House in 1869. |
72 | Rutherford B. Hayes | R | OH-02 | March 4, 1865 | 02nd term | Resigned on July 20, 1867. |
73 | Chester D. Hubbard | R | WV-01 | March 4, 1865 | 02nd term | Left the House in 1869. |
74 | James M. Humphrey | D | NY-30 | March 4, 1865 | 02nd term | Left the House in 1869. |
75 | Michael C. Kerr | D | IN-02 | March 4, 1865 | 02nd term |
76 | John H. Ketcham | R | NY-12 | March 4, 1865 | 02nd term |
77 | Addison H. Laflin | R | NY-20 | March 4, 1865 | 02nd term |
78 | George Van Eman Lawrence | R | PA-24 | March 4, 1865 | 02nd term | Left the House in 1869. |
79 | William Lawrence | R | OH-04 | March 4, 1865 | 02nd term |
80 | John Lynch | R | ME-01 | March 4, 1865 | 02nd term |
81 | Samuel S. Marshall | D | IL-11 | March 4, 1865 Previous service, 1855–1859. | 04th term* |
82 | Hiram McCullough | D | MD-01 | March 4, 1865 | 02nd term | Left the House in 1869. |
83 | Ulysses Mercur | R | PA-13 | March 4, 1865 | 02nd term |
84 | George F. Miller | R | PA-14 | March 4, 1865 | 02nd term | Left the House in 1869. |
85 | William E. Niblack | D | IN-01 | March 4, 1865 Previous service, 1857–1861. | 04th term* |
86 | John A. Nicholson | D | DE | March 4, 1865 | 02nd term | Left the House in 1869. |
87 | Thomas E. Noell | R | MO-03 | March 4, 1865 | 02nd term | Died on October 3, 1867. |
88 | Halbert E. Paine | R | WI-01 | March 4, 1865 | 02nd term |
89 | Tobias A. Plants | R | OH-15 | March 4, 1865 | 02nd term | Left the House in 1869. |
90 | Philetus Sawyer | R | WI-05 | March 4, 1865 | 02nd term |
91 | Samuel Shellabarger | R | OH-07 | March 4, 1865 Previous service, 1861–1863. | 03rd term* | Left the House in 1869. |
92 | Charles Sitgreaves | D | NJ-03 | March 4, 1865 | 02nd term | Left the House in 1869. |
93 | Stephen Taber | D | NY-01 | March 4, 1865 | 02nd term | Left the House in 1869. |
94 | Lawrence S. Trimble | D | KY-01 | March 4, 1865 | 02nd term |
95 | Rowland E. Trowbridge | R | MI-05 | March 4, 1865 Previous service, 1861–1863. | 03rd term* | Left the House in 1869. |
96 | Burt Van Horn | R | NY-29 | March 4, 1865 Previous service, 1861–1863. | 03rd term* | Left the House in 1869. |
97 | Henry Van Aernam | R | NY-31 | March 4, 1865 | 02nd term | Left the House in 1869. |
98 | Robert T. Van Horn | R | MO-06 | March 4, 1865 | 02nd term |
99 | Hamilton Ward, Sr. | R | NY-27 | March 4, 1865 | 02nd term |
100 | Martin Welker | R | OH-14 | March 4, 1865 | 02nd term |
101 | Stephen F. Wilson | R | PA-18 | March 4, 1865 | 02nd term |
102 | Nathaniel P. Banks | D | MA-06 | December 4, 1865 Previous service, 1853–1857. | 04th term* |
103 | Isaac R. Hawkins | R | TN-07 | December 4, 1865 | 02nd term |
104 | Henry D. Washburn | R | IN-07 | February 23, 1866 | 02nd term | Left the House in 1869. |
105 | William Henry Koontz | R | PA-16 | July 18, 1866 | 02nd term |
106 | Samuel M. Arnell | R | TN-06 | July 24, 1866 | 02nd term |
107 | Horace Maynard | R | TN-02 | July 24, 1866 Previous service, 1857–1863. | 05th term* |
108 | William Brickly Stokes | R | TN-03 | July 24, 1866 Previous service, 1859–1861. | 03rd term* |
109 | Elijah Hise | R | KY-03 | December 3, 1866 | 01st term | Died on May 8, 1867. |
110 | George M. Adams | D | KY-08 | March 4, 1867 | 01st term |
111 | Stevenson Archer | D | MD-02 | March 4, 1867 | 01st term |
112 | Samuel Beach Axtell | R | CA-01 | March 4, 1867 | 01st term |
113 | Daniel Myers Van Auken | D | PA-11 | March 4, 1867 | 01st term |
114 | William Henry Barnum | D | CT-04 | March 4, 1867 | 01st term |
115 | Demas Barnes | D | NY-02 | March 4, 1867 | 01st term | Left the House in 1869. |
116 | James B. Beck | D | KY-07 | March 4, 1867 | 01st term |
117 | Jacob Benton | R | NH-03 | March 4, 1867 | 01st term |
118 | Austin Blair | R | MI-03 | March 4, 1867 | 01st term |
119 | James Brooks | D | NY-08 | March 4, 1867 Previous service, 1849–1853 and 1863–1866. | 06th term** |
120 | Albert G. Burr | D | IL-10 | March 4, 1867 | 01st term |
121 | Benjamin Butler | R | MA-05 | March 4, 1867 | 01st term |
122 | Roderick R. Butler | R | TN-01 | March 4, 1867 | 01st term |
123 | Henry L. Cake | R | PA-10 | March 4, 1867 | 01st term |
124 | John C. Churchill | R | NY-22 | March 4, 1867 | 01st term |
125 | John Coburn | D | IN-06 | March 4, 1867 | 01st term |
126 | Thomas Cornell | R | NY-13 | March 4, 1867 | 01st term | Left the House in 1869. |
127 | John Covode | W | PA-21 | March 4, 1867 Previous service, 1855–1863. | 05th term* | Left the House in 1869. |
128 | Grenville M. Dodge | R | IA-05 | March 4, 1867 | 01st term | Left the House in 1869. |
129 | Jacob H. Ela | R | NH-01 | March 4, 1867 | 01st term |
130 | Orange Ferriss | R | NY-16 | March 4, 1867 | 01st term |
131 | William C. Fields | R | NY-19 | March 4, 1867 | 01st term | Left the House in 1869. |
132 | Darwin Abel Finney | R | PA-20 | March 4, 1867 | 01st term | Died on August 25, 1868. |
133 | John Fox | D | NY-04 | March 4, 1867 | 01st term |
134 | James L. Getz | R | PA-08 | March 4, 1867 | 01st term |
135 | Joseph J. Gravely | R | MO-04 | March 4, 1867 | 01st term | Left the House in 1869. |
136 | Asa Grover | D | KY-05 | March 4, 1867 | 01st term | Left the House in 1869. |
137 | Charles Haight | D | NJ-02 | March 4, 1867 | 01st term |
138 | George A. Halsey | R | NJ-05 | March 4, 1867 | 01st term | Left the House in 1869. |
139 | Cornelius S. Hamilton | R | OH-08 | March 4, 1867 | 01st term | Died on December 22, 1867. |
140 | John Hill | R | NJ-04 | March 4, 1867 | 01st term |
141 | William S. Holman | D | IN-04 | March 4, 1867 Previous service, 1859–1865. | 04th term* |
142 | Benjamin F. Hopkins | R | WI-02 | March 4, 1867 | 01st term |
143 | Julius Hotchkiss | D | CT-02 | March 4, 1867 | 01st term | Left the House in 1869. |
144 | Richard D. Hubbard | D | CT-01 | March 4, 1867 | 01st term | Left the House in 1869. |
145 | Morton C. Hunter | R | IN-03 | March 4, 1867 | 01st term | Left the House in 1869. |
146 | James A. Johnson | D | CA-03 | March 4, 1867 | 01st term |
147 | Thomas L. Jones | D | KY-06 | March 4, 1867 | 01st term |
148 | Norman B. Judd | R | IL-01 | March 4, 1867 | 01st term |
149 | William H. Kelsey | R | NY-25 | March 4, 1867 Previous service, 1855–1859. | 03rd term* |
150 | Bethuel Kitchen | R | WV-02 | March 4, 1867 | 01st term | Left the House in 1869. |
151 | William S. Lincoln | R | NY-26 | March 4, 1867 | 01st term | Left the House in 1869. |
152 | John A. Logan | D | IL | March 4, 1867 Previous service, 1859–1862. | 03rd term* |
153 | William Loughridge | R | IA-04 | March 4, 1867 | 01st term |
154 | J. Proctor Knott | D | KY-04 | March 4, 1867 | 01st term |
155 | Rufus Mallory | R | OR | March 4, 1867 | 01st term | Left the House in 1869. |
156 | Dennis McCarthy | R | NY-23 | March 4, 1867 | 01st term |
157 | George W. Morgan | D | OH-13 | March 4, 1867 | 01st term | Resigned on June 3, 1868. |
158 | William Moore | R | NJ-01 | March 4, 1867 | 01st term |
159 | Daniel Johnson Morrell | R | PA-17 | March 4, 1867 | 01st term |
160 | John Morrissey | D | NY-05 | March 4, 1867 | 01st term |
161 | James Mullins | R | TN-04 | March 4, 1867 | 01st term | Left the House in 1869. |
162 | William Mungen | D | OH-05 | March 4, 1867 | 01st term |
163 | Carman A. Newcomb | R | MO-02 | March 4, 1867 | 01st term | Left the House in 1869. |
164 | David A. Nunn | R | TN-08 | March 4, 1867 | 01st term | Left the House in 1869. |
165 | Green Berry Raum | R | IL-13 | March 4, 1867 | 01st term | Left the House in 1869. |
166 | John A. Peters | R | ME-04 | March 4, 1867 | 01st term |
167 | Charles E. Phelps | D | MD-03 | March 4, 1867 | 01st term | Left the House in 1869. |
168 | William A. Pile | R | MO-01 | March 4, 1867 | 01st term | Left the House in 1869. |
169 | Luke P. Poland | R | VT-02 | March 4, 1867 | 01st term |
170 | Daniel Polsley | R | WV-03 | March 4, 1867 | 01st term | Left the House in 1869. |
171 | John V. L. Pruyn | D | NY-14 | March 4, 1867 Previous service, 1863–1865. | 02nd term* | Left the House in 1869. |
172 | William E. Robinson | D | NY-03 | March 4, 1867 | 01st term | Left the House in 1869. |
173 | William H. Robertson | R | NY-10 | March 4, 1867 | 01st term | Left the House in 1869. |
174 | Lewis Selye | R | NY-28 | March 4, 1867 | 01st term | Left the House in 1869. |
175 | John P. C. Shanks | R | IN-11 | March 4, 1867 Previous service, 1861–1863. | 02nd term* |
176 | Worthington C. Smith | R | VT-03 | March 4, 1867 | 01st term |
177 | Henry H. Starkweather | D | CT-03 | March 4, 1867 | 01st term |
178 | Aaron F. Stevens | R | NH-02 | March 4, 1867 | 01st term |
179 | Thomas E. Stewart | R | NY-06 | March 4, 1867 | 01st term | Left the House in 1869. |
180 | Frederick Stone | D | MD-05 | March 4, 1867 | 01st term |
181 | J. Hale Sypher | D | LA-01 | March 4, 1867 | 01st term |
182 | John Taffe | D | NE | March 4, 1867 | 01st term |
183 | Caleb N. Taylor | R | PA-05 | March 4, 1867 | 01st term | Left the House in 1869. |
184 | John Trimble | R | TN-05 | March 4, 1867 | 01st term | Left the House in 1869. |
185 | Ginery Twichell | R | MA-03 | March 4, 1867 | 01st term |
186 | Cadwallader C. Washburn | R | WI-06 | March 4, 1867 Previous service, 1855–1861. | 04th term* |
187 | William Williams | R | IN-10 | March 4, 1867 | 01st term |
188 | John T. Wilson | R | OH-11 | March 4, 1867 | 01st term |
189 | Philadelph Van Trump | D | OH-12 | March 4, 1867 | 01st term |
190 | Charles Van Wyck | R | NY-11 | March 4, 1867 Previous service, 1861–1863. | 02nd term* | Left the House in 1869. |
191 | Fernando Wood | D | NY-09 | March 4, 1867 Previous service, 1841–1843 and 1863–1865. | 03rd term** |
| Samuel F. Cary | R | OH-02 | November 21, 1867 | 01st term | Left the House in 1869. |
| George W. Woodward | D | PA-12 | November 21, 1867 | 01st term |
| Alexander H. Bailey | R | NY-21 | November 30, 1867 | 01st term |
| Jacob Golladay | D | KY-03 | December 5, 1867 | 01st term |
| James R. McCormick | D | MO-03 | December 17, 1867 | 01st term |
| John Beatty | R | OH-08 | February 5, 1868 | 01st term |
| Columbus Delano | R | OH-13 | June 3, 1868 Previous service, 1845–1847 and 1865–1867. | 03rd term** | Left the House in 1869. |
| Thomas Boles | R | AR-03 | June 22, 1868 | 01st term |
| James M. Hinds | R | AR-02 | June 22, 1868 | 01st term | Died on October 22, 1868. |
| Samuel McKee | D | KY-09 | June 22, 1868 | 01st term | Left the House in 1869. |
| Logan H. Roots | R | AR-01 | June 22, 1868 | 01st term |
| Samuel F. Gove | R | GA-04 | June 25, 1868 | 01st term | Left the House in 1869. |
| Charles M. Hamilton | R | FL | July 1, 1868 | 01st term |
| John T. Deweese | R | NC-04 | July 6, 1868 | 01st term |
| John R. French | R | NC-01 | July 6, 1868 | 01st term | Left the House in 1869. |
| Alexander H. Jones | R | NC-07 | July 6, 1868 | 01st term |
| Oliver H. Dockery | R | NC-03 | July 13, 1868 | 01st term |
| David Heaton | R | NC-02 | July 15, 1868 | 01st term |
| W. Jasper Blackburn | R | LA-05 | July 18, 1868 | 01st term | Left the House in 1869. |
| Manuel S. Corley | R | SC-03 | July 18, 1868 | 01st term | Left the House in 1869. |
| James H. Goss | R | SC-04 | July 18, 1868 | 01st term | Left the House in 1869. |
| James Mann | D | LA-02 | July 18, 1868 | 01st term | Died on August 26, 1868. |
| Joseph P. Newsham | R | LA-03 | July 18, 1868 | 01st term | Left the House in 1869. |
| Benjamin Franklin Whittemore | R | SC-01 | July 18, 1868 | 01st term |
| Michel Vidal | R | LA-04 | July 18, 1868 | 01st term |
| Christopher C. Bowen | R | SC-02 | July 20, 1868 | 01st term |
| Nathaniel Boyden | D | NC-06 | July 20, 1868 Previous service, 1847–1849. | 02nd term* | Left the House in 1869. |
| Israel G. Lash | R | NC-05 | July 20, 1868 | 01st term |
| Charles Waldron Buckley | R | AL-02 | July 21, 1868 | 01st term |
| John B. Callis | R | AL-05 | July 21, 1868 | 01st term | Left the House in 1869. |
| Thomas Haughey | R | AL-06 | July 21, 1868 | 01st term | Left the House in 1869. |
| Benjamin W. Norris | R | AL-03 | July 21, 1868 | 01st term | Left the House in 1869. |
| Charles W. Pierce | R | AL-04 | July 21, 1868 | 01st term | Left the House in 1869. |
| Francis W. Kellogg | R | AL-01 | July 22, 1868 Previous service, 1859–1865. | 04th term* | Left the House in 1869. |
| Joseph W. Clift | R | GA-01 | July 25, 1868 | 01st term | Left the House in 1869. |
| William P. Edwards | R | GA-03 | July 25, 1868 | 01st term | Left the House in 1869. |
| Charles H. Prince | R | GA-05 | July 25, 1868 | 01st term | Left the House in 1869. |
| Nelson Tift | D | GA-02 | July 25, 1868 | 01st term | Left the House in 1869. |
| Pierce M. B. Young | D | GA-07 | July 25, 1868 | 01st term | Left the House in 1869. |
| Oliver J. Dickey | R | PA-09 | December 7, 1868 | 01st term |
| John H. Stover | R | MO-05 | December 7, 1868 | 01st term | Left the House in 1869. |
| Solomon Newton Pettis | R | PA-20 | December 7, 1868 | 01st term | Left the House in 1869. |
| James T. Elliott | R | AR-02 | January 13, 1869 | 01st term | Left the House in 1869. |