11-22-2017, 02:10 PM
I misread the post. I thought it said infantry, not engineers.
There is quite a bit of material, including a book written by the wife of one of the men. There are also references to it in the US Army's History of the Ardennes
BUT...as you noted, the best place to go is NARA..and also morning reports for each Company if they still exist in St, Louis.