Received the duplicated files for the 1173rd combat group from the National Archives. They found two folders, both relatively small, and sent my copies. While learning a bit more about the unit, I unfortunately still lack clarity on the context of my great grandfathers Silver Star, the type of operations that were conducted or the units comprising the combat group.
What I learned...
On May 30, 1945, the 1173rd was given orders to move from Rheinhausen back to Epernay, France where they were initially activated in September 44. This provides a bit of context as to where the unit was to earn Rhineland campaign accreditation. Unfortunately, this is the earliest document and the period from Sep 44 activation through May 45 remains a void.
Just over a month ago I received confirmation from the National Archives that they had my medal/awards inquiry. That is my next hope for gaining clarity, because unfortunately his records were destroyed in the fire and the certificate of service I have, does not document the silver star.
While somewhat discouraged with the documents I received, I am still pressing onward! It did provide some interesting pieces to combine with the rest of what I know.