Thanks Andy - and Chris again.
As I mentioned, the date of the portrait was not a primary factor in my painting, only a representation of the man to go along with his story. As for the rank, my source was (correct or not):
http://www.unithistories.com/officer...icers_N01.html
I did completely miss the painted yellow vest! Next time! That said, the main concept of the piece has demonstrably carried forth successfully - "A representation of the man to go along with his [more important] story."
Wade