Commanded by Major General George B. McClellan
| General Headquarters Escort | Captain James B. McIntyre | |
| Oneida (New York) Cavalry Company | Captain Daniel P. Mann | |
| 4th United States Cavalry Regiment, Company A | Lieutenant Thomas H. McCormick | |
| 4th United States Cavalry Regiment, Company E | Captain James B. McIntyre | |
| Provost Guard | Colonel Richard H. Rush | |
| 2nd United States Cavalry Regiment, Companies E, F, H & K |
Captain George A. Gordon | |
| 8th United States Infantry Regiment, Companies A, B, F and G |
Captain Royal T. Frank | |
| 19th United States Infantry Regiment, Company G |
Captain Edmund L. Smith | |
| 19th United States Infantry Regiment, Company H |
Captin Henry S. Welton | |
| Headquarters Guard | Major Grandville O. Haller | |
| 93rd New York Infantry Regiment | Lieutenant Colonel Benjamin C. Butler | |
| Quartermaster’s Guard | ||
| 1st United States Cavalry Regiment, Companies A, B, I & K |
Captain Marcus A. Reno | |
| United States Engineer Battalion | Captain James C. Duane |