Here are a couple sites which might help, I've been unable to figure out the revised U. S. Army Military History Institute site.

http://www.louisianacivilwar.org/2010/02/friendly-fire-at-florence.html

http://cdm16313.contentdm.oclc.org/cdm/compoundobject/collection/LSU_CNP/id/1006/rec/4

http://www.history-sites.com/cgi-bin/bbs62x/lacwmb/arch_config.pl?md=read;id=981