George F.Duda;83;of Fairhope;Belle Vernon;died Saturday;April 25;1998;in Mon Valley Hospital.  Born Dec.6;1914;in Washington Township;he was the son of the late Peter and Mary Kosiba Duda.  Mr.Duda was a member of St.Sebastian Roman Catholic Church;Belle Vernon;and American Legion Post 695;Belle Vernon.  In addition to his parents;he was preceded in death by his wife;Julia Baron Duda;who died Jan.28;1997;a brother;Carl Duda;and a sister;Irene Baker.  Surviving are two sons;George Duda Jr.of Manassas;Va.and Charles Duda of Potomac;Md.;one daughter;Betty Duda of Fairhope;two brothers;Frank Duda of Monessen and Edmund (Rex) Duda of Belle Vernon;one sister;Julia Howski of Belle Vernon;and four grandchildren.  Visitation was Sunday in the Eley/McCrory Funeral Home Inc.;Fayette City.  A Blessing service was held Monday in the funeral home;followed by Funeral Mass in St.Sebastian Church;with the Rev.E.George Saletrik as celebrant.  Interment was in Belle Vernon Cemetery.  Arrangements were handled by the Eley/McCrory Funeral Home Inc.