Sister Mary Aidan was born in Oklahoma City, Oklahoma. Raised with her siblings on the family farm in southwest Oklahoma City, she began helping with the farm chores at an early age. She attended elementary school and high school at Mount St. Mary’s Academy in Oklahoma City, graduating in 1951. She received a B.A. in elementary education at Webster College in St. Louis, Missouri, and an M.A. in elementary education at University of Oklahoma in Norman.
Sister Mary Aidan entered the Sisters of Mercy on September 11, 1953, at Webster Groves, Missouri, and made her profession of religious vows on August 16, 1961. In 1959, she began her teaching career at Immaculate Conception School in Oklahoma City. She went on to teach at St. Joseph School, John Carroll School, Sacred Heart School, Rosary School, Christ the King and Putnam City public schools, all located in Oklahoma City. Sister Mary Aidan enjoyed her many years of teaching. After her retirement, she lived on her family farm, where she maintained the land and livestock for many years. She loved all the animals she kept there. In October 2019, Sister Mary Aidan began living at the Mercy Health Center Convent, where she attended mass and continued her faithful ministry of prayer. She enjoyed the many community activities and events, the community members and her co-workers.