Complex sentence: He died on 9 February 1939 in Los Angeles, California at the age of 62 after an operation, leaving his widow, Mary Jane; three sons, Leo, John and James Jr.; and three daughters, Betty, Joan and Kathleen.
Split into simpler sentences: He died on 9 February 1939 in Los Angeles, California at the age of 62 after a surgical procedure. Surviving were his widow, Mary Jane; three sons, Leo, John and James T. Carroll, Jr.; and three daughters, Betty, Joan and Kathleen.