Given the information you gave, I am going to direct you several places. The 175th Infantry Regiment was part of the 29th Infantry Division which did indeed land on Omaha Beach on D-Day. They were the division that took so many calsulties particulary from one town in Pennsylvania.The 175th has an association that can be reached at: Col. John Vaccarino, USA Ret. 29th Div St,Fifth Regiment Armory Baltimore, MD 21201 410-576-6099 As to the 11th Airborn, it would not have been unusual for a man to be crossed trained. The 11th has web site on line for their association. I would suggest you contact both the 175th and the 11th.