Thanks for that information! There are a couple of photos of Major Wilson currently posted on the Louisiana Digital Library website as part of a "Civil War Photograph Album, 1862-1900"

http://www.louisianadigitallibrary.org/cdm4/document.php?CISOROOT=/LSU_CWP&CISOPTR=451&REC=17

M. R. Wilson images are #97 and #100.

I am still wrestling with the release date from Fort Delaware for Colonel Isaiah G. W. STEEDMAN, 1st Alabama Artillery regiment. See the string on Colonel STEEDMAN over on the Alabama CWMB.

Hugh