McMahon DDS, Ronald C. (Symbol of American Flag) - February 18, 2020 - Beloved husband of 63 years to Geraldine "Jerry" (nee Kreutzer) McMahon. Loving father of Mary (Stephen) Jakiel, Kathleen (late Paul) McMahon-Wahler DDS, Sean (Cheryl) McMahon, Margaret (Daniel Gresh) McMahon, Brendan McMahon and Siobhan (Eldon) Girdner. Proud grandfather of 18 grandchildren and 6 great-grandchildren. Dear brother of Kevin (Liz) McMahon and the late Gerald (Sally) McMahon and Karen (Roy) LaMond. All are invited to attend a Memorial Mass at St. Joseph University Church, 3269 Main St., Buffalo 14214, Saturday, February 29 th at 10:00 AM. In lieu of flowers, donations in Dr. McMahon's memory to Roswell Park Alliance. Please share condolences at www.mertzfh.com