Popsie was the daughter of Mary Jones who worked for the Syndicate in late 1959 watching over Headache, a man who had created the disguised “baby buggy” slot machines. When Headache sabotaged the slot machines to pay out obscene amounts of money, Popsie, her mother and Headache were forced to flee together. Syndicate henchmen, the Hardley Brothers caught up to the trio and abducted and killed her mother. Blaming Headache for her “Momma’s” death, Popsie ran away and finally went to Tracy and told him what had happened.
Dick Tracy Vol #18 (1957-1959)