Friend Robert Moore sent me some links to lists of Union POW’s memorialized in Richmond’s Shockoe Hill Cemetery. These men died in captivity and were buried along outside the east wall of the cemetery (thanks to reader Jeffry Burden). They were disinterred and moved in 1866 to Richmond National Cemetery. The United Daughters of the Confederacy (UDC) erected a marker to them in 1938, and the Military Order of the Loyal Legion of the United States (MOLLUS) put up another one in 2002. See photos here.
Turns out there are a lot of names on those lists that are or may possibly be of men who were captured at First Bull Run – actually, a surprising number. This will take a little time, but I’ll try to put the list together and post it here. For now, you can find the names of all the identified soldiers here.