District of Columbia - Union
Cavalry
| 1st Regiment Cavalry | Owens' Militia Cavalry Company |
Infantry
| 1st Regiment Infantry | 2nd Regiment Infantry | 2nd Battalion Infantry |
| 3rd Battalion Infantry | 5th Battalion Infantry | 8th Battalion Infantry |
| Boyd's Company Militia Infantry | Callan's Company Militia Infantry | Carrington's Company Militia Infantry |
| Clarke's Company Militia Infantry | Cross' Company Militia Infantry | Degges' Company Militia Infantry |
| Elder's Company Militia Infantry | Ferguson's Company Militia Infantry | Fletcher's Company Militia Infantry |
| Foxwell's Company Militia Infantry | Gebhardt's Company Militia Infantry | Goddard's Company Militia Infantry |
| Grinnell's Company Militia Infantry | Kelly's Company Militia Infantry | King's Company Militia Infantry |
| Knight's Company Militia Infantry | Kyrzanowski's Company Militia Infantry | Loeffler's Company Militia Infantry |
| Mark's Company Militia Infantry | Miller's Company Militia Infantry | Morgan's Company Militia Infantry |
| Morrison's Company Militia Infantry | McBlair's Company Militia Infantry | McClelland's Company Militia Infantry |
| McDermott's Company Militia Infantry | McKim's Company Militia Infantry | Nally's Company Militia Infantry |
| Powell's Company Militia Infantry | Rodier's Company Militia Infantry | Rutherford's Company Militia Infantry |
| Smead's Company Militia Infantry | Thistleton's Company Militia Infantry | William's Company Militia Infantry |