I could not find a Louis Pederman listed in the Nat'l Archives or the ABMC database. I did, however, find an Army PFC Louis S. Peterman, from Milwaukee County, Wisconsin. He is listed as KIA on 2 June 1945, which would have been during the Okinawa campaign. Also, he is listed as having been in the 17th Infantry, one of the rifle regiments of the 7th Division. This unit saw action in the Okinawa campaign. Could your friend's brother have been Louis S. Peterman, from Wisconsin, rather than Louis Pederman? Please advise.