DOVER - Donald M. Cannon, Sr., 72, of Dover, passed away at 10:00 PM, Monday, December 11, 2017 at his home. He was the husband of Debra (Knight) Cannon whom he married 51 years ago on August 19, 1966. Donald was born June 24, 1945 in Glen Burnie, MD and was the son of the late James and Elinor (Martin) Cannon. In 1963 he graduated from William Penn High School in York and continued to Penn State University where he graduated with a BA in Mechanical Design Engineering. He was employed for 37 years by Sylvania in York before retiring in 2003. Donald held 7 patents for design, machinery and lighting with the Sylvania company. He previously was employed by Penn Tool of York and did consulting for Tooling Dynamics also of York. He was owner and operator of Z&Z Excavating for 12 years prior to and after his retirement from Sylvania. He was a member of the York Rifleman Association; Dover Fish and Game; NRA, and (SME) Society of Manufacturing Engineers. Don's happiest times were spent hunting and working on the family farm, out in the fields with the grandkids in tractors making hay for Z&Z Acres. In addition to his wife, Debra, Donald is survived by his daughter, Melissa Cannon Workman and her husband Edwin of Dover; his son, Dr. Donald M. Cannon, Jr. and his wife Dr. Angelia Cannon of Mount Veron, IA; his four grandchildren, Zachary Workman, Zoey Workman, Jacob Cannon and Cyrus Cannon; and "Blessings to a special friend, Leon Resline whom he referred to as (my brother)." A celebration of life service will begin at 3:30 PM, Sunday, December 17, 2017 at The Diehl Funeral Home & Cremation Center of Mount Wolf. Visitation will be from 1:30 to 3:30 PM, Sunday at the funeral home. Burial will be private in Prospect Hill Cemetery in York. Officiating at the service will be Chaplain Margie Stevens from Heartland Home Health Care and Hospice of York. Those planning an expression of sympathy may wish to consider the York Cancer Patient Help Fund, 50 North Duke Street, 2nd Floor, York, Pennsylvania 17401. To share memories of Donald please visit www.diehlfuneralhome.com