Lt. John A. McCarthy was the son of Chicago Fire Captain Patrick J. McCarthy and worked as a fireman himself for three and a half years at Engine Company No. 1 at Lomax and Wells. He then joined the Chicago Police Department in January 1939 and was known to have worked out of the Wabash Avenue Station. He enlisted in the U.S. Army on March 5, 1940 and gained the rank of Lieutenant. He was killed in action in France on September 13, 1944. He was 30 years old. Lt. McCarthy was survived by his parents, his widow, Josephine, a son, John Jr. (11 mos.), two brothers, CPD Patrolman William McCarthy of the traffic detail, and Petty Officer 2d Class Raymond McCarthy of the Coast Guard, and by two sisters, Frances McCarthy and Mrs. Hugh Kelly.