Jim, I would look forward to meeting you and I'd be more than happy to share any information that I have. As a side note I am a WWI photograph collector (that and everything else WWI that I can get my hands on!) and I have over 100+ unpublished original photos of Black WWI soldiers that I'd be happy to bring along. I am currently discussing publishing some of the best in a magazine called Military Images. If you are unfamiliar, they are primarily a Civil War collector magazine but occasionally they do slip in a WWI image or two. Any help that I can be would be my pleasure, I look forward to hearing from you.
Tom