Hi George,
Welcome aboard. Your search sounds a lot like mine: a lot of rumors and things that people remembered...sort of. (The only true thing I found was one of my uncles remembered that my father was at the Bulge, everything else might have been a compilation of every other veteran they knew) My big breakthrough was by posting on a couple of WWII websites. Some kind person took pity on me and sent me a long paragraph on my dads unit.
I'm not sure if the person they referred to on this site was you, but here is something on the unit you mentioned:
www.debarquement-normandie.com/phpBB2/viewtopic.php?p=156127&sid=e98dd62554ca90fefa9a1a45699ec8e6 - 65k
the website is in french but it will translate it to english for you.
My breakthrough in speaking to a member of my dads unit was I found a monument with his unit on it related to the Battle of the Bulge, I emailed the webmaster, that sent a letter to the Battle of the Bulge association president who looked at the rolls of his members and found a member of the 1251st....
Good luck!!!