Mary K. (McDonnell) Onimus

August 15, 1933 ~ April 4, 2021 (age 87)


Mary K. (nee McDonnell) Onimus, 87, of West Chester, PA, a resident of Radley Run Mews, passed away on April 4, 2021.

Born in Cambridge, NY in 1933, she was the daughter of the late George J. and Esther (nee Nolan) McDonnell. Mary was a Registered Nurse. She received her education at Mt. Sinai Hospital in New York. She worked around the country in Pennsylvania, Texas, and Alabama and ended her career at Chatham Acres for the elderly. Mary was a devout Catholic and member of St. Cornelius Church in Chadds Ford. She was an avid reader and enjoyed playing golf at Radley Run Country Club where she was a champion golfer with the Nine Holers.

Mary was the beloved wife of Edwin R. Onimus, with whom she shared 62 years of marriage; loving mother of Eric Onimus and Julie Mackin (Patrick); caring grandmother of Elizabeth and Anne Mackin.

Services and interment are private. Relatives and friends are invited to view the Funeral Mass via livestream at 11 AM on Wednesday, April 14, 2021 through St. Cornelius’ website: https://livestream.com/saintcornelius.

In lieu of flowers, memorial contributions to St. Cornelius Church, 160 Ridge Road, Chadds Ford, PA 19317, would be appreciated.



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Livestream of Funeral Mass
April 14, 2021

11:00 AM

This event will be live-streamed


St. Cornelius Church
160 Ridge Road, Chadds Ford PA 19317
Tel: 1-610-459-2502

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