I have a large collection of Lt. Harry E. Fulweiler's letters that I aquired on eBay which I'm sure you did yourself with the letter you have pertaining to the Battle of the Bulge.
Much of these letters are similar as you might expect a love letter from a husband and new father would be to his wife. They have particular interest to me since Mr. Fulweiler's hometown is in my state of Kentucky, about a 2hrs drive from me. I have been able to gather nearly 100 such letters and preserving this collection as much as possible would be great.
The letters don't give many specifics of locations and are rather vague but perhaps there might be some information that I could pass along to you. Feel free to email me... firstname.lastname@example.org