I am trying to find out information about my grandfather that served in WW2 in the army from 1943-1945. I have very little information on him and can not find any information on him through archives.com and ancestory.com. I have a separation of service letter stating his rank and the enlistment dates and a few patches from him. He was a corporal in the US Army and was a army corps of engineer and was in the Pacific Theatre. I have a few unit patches but from what I think I have read they are conflicting. I have a 101st Airborne patch and a 7th infantry division patch from my grand father. I am trying to build a shadow box to honor his tour of duty but I want to ensure I have accurate material listed in the box. I would like to know if it is possible to have been in both the 101st and the 7th infantry throughout ww2? Please any information regarding this would help. As a member of the armed forces now this means a lot to me and unfortunately cannot ask him because he passed away during basic training. Thank you again in advance for all the help.