Mary Fitzpatrick-Parker was the wife of Richard Parker, and like him, was a CIA agent. The two of them had a son, Peter. While Peter was still an infant, Richard and Mary were assigned to infiltrate the Algerian based spy ring controlled by Communist agent the Red Skull, but the Skull discovered they were double agents and had them killed by his agent the Finisher.
While Richard and Mary were on assignment, Richard's brother Ben and Ben's wife May took care of Peter. Ben and May had never had children of their own, but after Richard and Mary died, they became Peter’s surrogate parents and raised him as if he were their own son.