Donald B. Graham, 71, of North Huntingdon died Sunday Jan. 17, 2021 at his home. He was born Oct. 5, 1949 in North Huntingdon, a son of the late Jesse and Alice (McFarlane) Graham. Prior to his retirement, Don was employed as a mechanical designer for Irwin Car and Equipment. Don was a combat Army veteran of the Vietnam War, 199th Light Infantry Brigade. He was a social member of the Shafton Fire Company, member the Veterans of Foreign Wars, post 781, of Irwin and the American Legion Post 359, of Irwin. Don enjoyed golfing with his brother and close friends, he liked to kayak and enjoyed biking. In addition to his parents, he is preceded in death by a brother, Dennis Graham. Surviving are three children; Heather Graham, of Dallas, Penn., Elizabeth Venturino, of Cheswick and Donald B Graham Jr. and his wife Jessica of Darragh; four grandchildren; Jesse Berlew, Evelyn and Leo Venturino and Donald B. Graham III; Don is also survived by his girlfriend Deborah Gaab and her children Nicole Gaab, Carly Bolby and Michael Gaab; a brother Gary Graham and his wife, Claudia, of North Huntingdon and several nieces and nephews. Friends will be received 2 to 4 and 6 to 8 p.m. Wednesday at the OTT FUNERAL HOME, INC.,805 Pennsylvania Avenue, Irwin. A funeral service will be held 10 a.m. Thursday in the funeral home chapel. Interment will follow in the Irwin Union Cemetery, North Huntingdon.