Below is something I ran across pertaining to your query.

"From the Seat of War in Virginia
Special Correspondence of the Delta
Manassas Junction, August 5, 1861

..."There was not a single man of the 8th Regiment injured in that engagement. Six of its companies were stationed all day at Mitchell's Ford, on Bull Run, and were under fire of the enemy's Batteries for most of the time; but being entrenched, they met with no casualty. They were ordered to the left just at the end of the affair, but did not have a chance at the flying foe."
The Daily Delta (New Orleans)
August 13, 1861
Vol. XVI
#215
Page 1, Column 2