Mr. Beard: I beg your pardon! As I reread your post, you should also, I see no place it refers to the grave being in a National Cemetery. Reference, is 'St Louis', a large city in Missouri which without a doubt contains many graves. I believe you were making an assumption,that all who read your post would assume like wise. That was an error. As the facts stand I don't think my "attitude" was so much "out of line."
As for my credentials, I went through two wars, lost a son in one, and have been connected to the Armed Forces for 68 years, yes 68. I carry an Armed Forces ID today. Is that good enough for you?
Be in mind sir; I know how you feel and my heart goes out to you, for I too have been there.