Donald L. Klosterman of Mason. Beloved husband of 56 years to Nancy L. Klosterman. Loving father of Mary M. Klosterman, Donald A. (Susan) Klosterman, Joseph A. (Julia) Klosterman, Ann E. (Christopher) Spanier and James S. (Jamie) Klosterman. Proud grandfather of Drew, Leah, Jack, Sam, Tom, Bobby, Will, Taylor, Miranda and Ben. Son of the late Albert and Loretta Klosterman. Dear brother of David (Betty) Klosterman and the late Albert (Terri) Klosterman, William Klosterman, Thomas Klosterman, Eugene Klosterman and John Klosterman. Survived by his sisters-in-law Arlene Klosterman, Frances Klosterman and Ruth Klosterman. Retired from the Environmental Protection Agency, Water Division, in 1999. Passed away Tuesday, September 24, 2019 at the age of 86. Friends will be received Friday, October 4 from 6-8 PM at St. Margaret of York Church, 9499 Columbia Road, Loveland, Ohio 45140, where Mass of Christian Burial will be celebrated Saturday, October 5 at 10:00 AM. Interment Gate of Heaven Cemetery. Funeral Home: Tufts Schildmeyer Family Funeral Home & Cremation Center - Loveland 129 Riverside Drive Loveland, OH US 45140