I have not located your POW camp yet, for sure. There is a site identified as an internee camp/German, under military control, but I can not determine if it was for POW or for civilian German/American internees.
...FORT BARRANCAS, FL...,
is not included in the American Army Installations list, so I can't get a lead there.
I also came across
which may provide a lead for you.
Interesting subject, yet nothing on the internet which one may readily identify.
Finally, are you related to one of our 'best friends', CHUCK YEAGER ?