Mademoiselle Marie beret-wearing character is notable as being the only love interest of Sgt. Rock. In Pre-"Crisis" continuity it was revealed that Marie had a daughter named Julia Remarque. The father of her child was Batman's butler Alfred Pennyworth, who was an intelligence agent in France during the war. Julia no longer exists in current DC Comics continuity. At some point following World War II the name of Mademoiselle Marie became a code name awarded to agents of the French intelligence agency, the DGSE. Josephine Tautin, introduced in "Checkmate" Vol. 2 #5, uses the name in her capacity as the member of
Matthew Butler and Matthew Calbraith Perry, for whom Matthew Calbraith Butler is named. His father, William Butler, Jr., was a Congressman beginning in 1841. His uncle Andrew Butler was a U.S. Senator from South Carolina and uncle Pierce Mason Butler was Governor of South Carolina. One of Matthew Butler's first cousins was Congressman Preston Brooks, who assaulted Senator Charles Sumner in 1856 on the floor of the U.S. Senate with a cane. He said it was because Sumner had insulted Senator Andrew Butler, at whose home Matthew lived as a young man. Two of Butler's first cousins twice removed were James Bonham