well I had gotten in touch with both the D.C. Nara and the St. Louis. I have been bounced back and forth between both places in regards to who would have records regarding Henry Thompson. I must say that I am starting to get a bit frustrated with them. I do think though that I may have found Henry's cemetery marker at the Erie Cemetery online. I will be trying to get a military marker placed on his grave in recognition of his military service...provided that I can eventually get some sort of record from the Archieves. Wish me luck, because I'm gonna need it!