462nd Anti- Aircraft Artillery Battlion

Hi Everyone-
I am looking for information on the 462nd Anti-Aircraft Artillery Battlion U.S Army.My Great-Uncle served in the Headquarters Battlion of that unit.I would like to hear from anyone who may have served in that unit or remembers him.
My uncle's name was Irvin "Babe" Nielsen.He was from the Dwight, Illinois area.I have pictures of him and his buddies at Camp Haan and another camp, possibly in California.I also have pictures he took in Pilsen, Czechoslovakia. He received the Bronze Star.I have always been told be my family that he was almost killed on his birthday, which was December 24th.I have a book about his unit, but it does not mention how he was injured.
Anyone with any additional information, I would like to hear from you.

Thank you
Jennifer Magers