Born July 11, 1923 in Northampton, Pennsylvania, he was the son of the late John A. and Mary Petro. Mr. Petro predeceased by his wife of 59 years, Florence Petro who died in 2005. John was both a retired supervisor with Mack Trucks, and a security officer with the Washington County Hospital of Hagerstown. He was a very proud Marine Corps veteran of World War II, serving aboard the aircraft carrier USS Yorktown. He was an active member at St. Joseph Catholic Church, and served there as an usher for many years. He was also a long time member and one time Grand Knight for the local Knights of Columbus. He also belonged to the American Legion in Williamsport, Maryland, and the Brotherhood of Elks in Hagerstown. Slim, as family and friends knew him, enjoyed daily get-togethers at a local hotel pool, evening card games with family, and an occasional day trip to nearby Charlestown, West Virginia. Surviving are five children: John Petro and his wife Linda of Mt. Airy, Maryland, Susan Gephart and her husband Joe of Salisbury, Maryland, Patricia Springer and her husband Mike of Hagerstown, Guy Petro and his friend Kelli of Halfway, Maryland, and Maria Shadrach and her husband Scott of Hagerstown; a brother and sister-in-law, Albert and Vivian Petro of Toms River, New Jersey; and a sister, Dorothy Miller of Toms River, New Jersey; eleven grandchildren and nine great-grandchildren. The family will receive friends at Minnich Funeral Home, 415 East Wilson Boulevard, Hagerstown on Sunday from 2 to 4 p. m. and 7 to 9 p. m. A Christian wake service will be held at 3:00 p.m. Mass of Christian Burial will be celebrated at St. Joseph Catholic Church on Monday at 10:00 a. m. Rev. Christopher Moore will be the celebrant. Burial will be in Rest Haven Cemetery in Hagerstown. Graveside military honors will be conducted by Morris Frock American Legion Post 42. In lieu of flowers, the family asks that donations be made to St. Joseph Catholic Church, 17630 Virginia Avenue, Hagerstown, Maryland 21740, Hospice of Washington County, 747 Northern Avenue, Hagerstown, Maryland 21740, or Antietam Healthcare Foundation of Washington County Hospital, 251 East Antietam Street, Hagerstown, Maryland 21740.