Louis Joseph Souply;53;of Irwin R.D.7;died Tuesday March 9;1971 in McKeesport Hospital. He was born February 3;1918.He was a senior physicist at Bettis Atomic Power Laboratory at West Mifflin. He served in the U.S.Army Air Corps during World War II. Survivors include his widow;Viola Kish Souply;two daughters;Penelope;a student at California State College and Pamela;at home;three sisters;Mrs.Alice Rogers of Gary;Ind.;Mrs.Aline Scholl of Charleroi and Mrs.Marie McVey of Belle Vernon. Services were held Saturday March 13 with burial in Belle Vernon Cemetery.