Jack,
Here is a link to the bio of Alfred Holt Colquitt
http://en.m.wikipedia.org/wiki/Alfred_H._Colquitt
Try Google book search for addition data. I'am surprised on how much data can be culled from Google Book search.
I believe Colquitt's brigade was the only Confederate force to take part in the attack on James Island,S.C. on July 16,1863.(as portrayed in the film "Glory"; it just happens to be on tv tonight!.
Best regards,
John