HELP ARMY DUers!!!! Messy resting place for fallen(?) soldier......

[liberalitch]

I am on vacation in Williamsburg and we took the Jamestown/Scotland Ferry and on the way back stopped to take pictures of a dilapidated little cemetery. As soon as we got out of the car, we noticed that it was an African American Cemetery that had provided a final peaceful place for two or three families, but was in HORRIBLE disrepair.
BUT.... in the back corner of the cemetery I found the grave of a man who had obviously served in WW2. He had a marker that had his name, rank, unit, state and year of demise. I found no other personal marker.
Pvt. Langhorn Watson
Virginia
542nd. Service Engineering Battalion
December 15, 1942

I tried to post a pic and I will... but I can't get my photobucket to work.

I don't know these things:
Is that where he wanted to be buried.... with family instead of brothers?
Is the marker I saw in fact from the Army? .....in which case,.... it isn't enough.
Don't this man and his family deserve an "Army Clean-up" of that cemetery?

How do I find out more?