It does not appear that this was ever recorded as a named battle, seems more like a heavy skirmish.
George Martin
Rosser's Brigade.
Brig. Gen. THOMAS L. ROSSER.
7th Virginia, Col. Richard H. Dulany.
11th Virginia,----- -----.
12th Virginia. Lieut. Col. Thomas B. Massie.
35th Virginia Battalion, ------ ------
May 6th--As the morning dawned the sounds of boots and saddles are heard. Gen. Rosser sends a message to Lt. Col. White to send his leading squadron to him. Lt. Col. White orders Capt. Myers and Company A to report to Gen. Rosser. Gen. Rosser orders to Capt. Myers were thus,"Myers, move your people down this road and run over everything you come to. I'll send a pilot with you." Capt. Myers moves his men out across the Po River, followed closely by the Lt. Col. White and the rest of the "Comanches". Beyond the Po was one of the Chancellor plantations at the edge of the Wilderness, at which the 35th moves to the left entering into an open pine area. Lt. Col. White receives orders to press the Federals and drive them as far as possible. The "Comanches" now run into the Federal pickets of Gen. George Custer and open fire. Gen. Custer formed his four regiment dismounted in a ravine west of the Brock road, where awaited the four regiments of Col. Thomas Devin's Brigade.
Gen. Custer had ridden out to his pickets when the firing started, and out of the woods riding like Hell's Fury came the "Comanches" literally riding over everything in sight. They rode into the left flank of the Federals in columns of four, breaking through the 6th Michigan and then turn about and run over them again. The fire from the 5th and 6th Michigan, armed with spencer repeating rifles, were too much for the 35th and were compelled to fall back with heavy losses.
Gen. Stuart's Horse Artillery arrive and the battered troopers of the 35th were able to withdrawal.
One third of the battalion, already under strength, were casualties in this action. Prvt. Henry Moore was killed at the deepest penetration of the charge; Prvt. William Hugh Thompson succumbed to wounds nine months later;1st Lt. Adjutant Richard T. Watts was captured while trying to save the battalion's records from his horse after it was shot. Lt. Col. White had another horse shot from under him.
The 35th moves back to its camp at Shady Grove that night.
[http://joseph_staup.tripod.com/35thBattalion/35thbattalionvirginiacavalry.htm]
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O.R.-- SERIES I--VOLUME XXXVI/1 [S# 67] p. 833
MAY 4-JUNE 12, 1864--Campaign from the Rapidan to the James River, Va.
No. 197. --Reports of Col. Thomas C. Devin, Sixth New York Cavalry, commanding Second Brigade, including operations May 4--July 2.
HDQRS. SECOND BRIGADE, FIRST CAVALRY DIVISION,
July 4, 1864.
CAPTAIN: I have the honor to submit the following report of the operations of this brigade, from May 4 to 26 inclusive:
On the afternoon of May 4 the brigade marched from Culpeper, and encamped near Sheppard's Grove, on the road to Richards' Ford. May 5, crossed the Rapidan at Ely's Ford, and advanced to Chancellorsville. On the morning of May 6 I was ordered to advance with the brigade and Heaton's battery to the Brock road and take up a position on the right of General Custer, and to endeavor to communicate with and watch the left of our infantry line. If I found General Custer engaged I was ordered to support him. On reaching the position, I found General Custer briskly engaged with the enemy, who had also opened a heavy fire upon him from a battery of three guns posted in a field in his front. I formed the brigade in support, and ordered Lieutenant Heaton to place his battery in position behind the crest of the hill in rear of Custer's line, and then to run up his guns by hand to the crest, which was covered with dwarf pine. By this means the guns were trained and ready to open before the enemy were aware of their presence. The guns were at once opened, and in a few minutes the rebel battery was driven from the ground, with a loss of captain, lieutenant, several men, and 8 horses killed. The enemy made no further demonstration at this point during the day. I succeeded in connecting Seventeenth Pennsylvania Cavalry with left of Second Corps, and Sixth New York Cavalry with right of General Gregg, near Todd's Tavern. About 5 p.m. I was ordered to retire to the Furnaces, where the brigade encamped. . . . . . . .
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Captain MCCLELLAN:
I was attacked by Fitz. Lee's division near the intersection of the Furnace and Brock roads. After an obstinate fight I drove him in disorder from the field, compelling him to leave a considerable number of dead and wounded on the field. My loss will be about 20 in all. General Rosser's assistant adjutant-general was killed. I have prisoners from Young's and Rosser's brigades. Colonel Devin, with his command, arrived in the nick of time and rendered good service. Gregg also let me nave two guns. The enemy retired rapidly to my left, and are now in front of Gregg.
G. A. CUSTER,
Brigadier-General, Commanding.
P. H. SHERIDAN,
Major-General, Commanding.
V36 Pt.2 p.466