Here are the units sent to the Army of the Potomac from the Washington defenses on or about June 26:
Brigadier General George Stannard's Brigade (12th, 13th, 14th, 15th, 16th Vermont)
Brigadier General Alexander Hays' Brigade (39th, 111th, 125th, 126th New York)
First Brigade, Pennsylvania Reserve Corps (1st, 2nd, 6th, 13th Pennsylvania Reserves)
Third Brigade, Pennsylvania Reserve Corps (5th, 9th, 10th, 11th, 12th Pennsylvania Reserves)
2nd Connecticut Battery
9th Massachusetts Battery
Major General Julius Stahel's Cavalry Division (command was given to Brigadier General Judson Kilpatrick)
- Brigadier General J.T. Copeland's Brigade (1st, 5th, 6th, 7th Michigan)
- Colonel R. Butler Price's Brigade (Companies A & C, 1st Ohio, 2nd, 18th Pennsylvania, 1st Vermont)
- Colonel O. DeForest's Brigade (5th New York, 1st West Virginia)
Battery I, 1st Michigan Light Artillery
Ryan