Joann M. (nee Ciaccio) McMahon, of Clarence, entered into rest on September 10, 2022 at age 70. Beloved wife of the late Dr. Edward McMahon; devoted mother of Charles Fell; adored grandmother of Sienna Fell; loving daughter of the late Salvatore and Lena (nee Sardina) Ciaccio; dear sister of Michael Ciaccio; cherished sister-in-law of Maureen (late Dr. Otis) Tibbetts; special aunt of Nicholas and Vito Ciaccio; also survived by loving cousins and many dear friends. Joann retired after many years as a teacher in the Sweet Home School District. Relatives and friends are invited to attend a Mass of Christian Burial celebrated at Our Lady of Peace Church, 10950 Main St., Clarence, on Wednesday (September 21, 2022) at 11am. Please assemble at church. Relatives and friends are also invited to attend a Committal Service at Mt. Calvary Cemetery, 800 Pine Ridge Heritage Blvd., Cheektowaga, on Thursday (September 22, 2022) at 11am. Please assemble at the cemetery office. Flowers gratefully declined.