Born on the Dyson Ring station, in the G 268-47 system, Mary Quinn is the granddaughter of pilot Rebecca Quinn who took part in the Revolutionary Party of the system, and had died il mission for her convictions. Mary's upper working-class family managed to send her to advanced astronomy studies in the hope of giving her a better life than that of an executive in the refining industry. The young woman continued her studies diligently but without distinction, borrowing from several people in order to obtain her pilot's certificate.

Upon graduating from the academy, the young commander joined Remlok Industries, which offered her her first experience of working as a commander for an industrial company.

However, the young woman inherited her grandmother's fighting spirit and cannot bear to be inactive when humanitarian causes need to be defended, she joined the Ice Storm Squadron after that for defending the Federation's systems.