She was born on May 29, 1941 in Springfield, the daughter of the late Harold and Martha (Ruzes) Charles. She married Ralph Richno and he preceded her in death on August 16, 1988.
Mary worked as an accountant for the Illinois Department of Public Aid Child Support Division. She was a member of St. Katherine Drexel Parish in Springfield.
She is survived by her son Ralph Richno of Springfield; 3 grandchildren, Brittany Conn, James Whitmore, and Madison Richno; 4 great-grandchildren, Tianah Conn, Alyviah Conn, Devin Conn, and Zoey Conn; her sister Martha Shores of Springfield, and a niece Kim (husband Steve) Rebbe of Petersburg, IL.
Besides her parents and her husband, she was preceded in death by a brother William Charles.
Services are under the direction of Bisch and Son Funeral Home, 505 E. Allen, Springfield, where visitation will be held on Monday, April 5, 2021 from 10 am until time of the funeral service at 11 am. The funeral service will take place at the funeral home and burial will follow at Calvary Cemetery, Springfield.
Memorials may be made to the American Lung Association.