Thanks.
Googled the book (History of Louisiana...) and looked at the picture and text. Looking at the picture of DeBlanc, the way I read the accompanying text, the picture was taken at the same time DeBlanc was a Lt Col and Perry a 1st Lt, is this how you read it? Also, any idea as to the type of jacket? Looks like a RDI/II, perhaps a Tait?

Can't seem to find the other book, but will keep trying.

JIM T