Catherine Mehok Letrick of Milfred Terrace;Fredericktown and formerly of California Borough;died at 1:15 p.m. Friday;Jan.17;1986;in Washington Hospital. Mrs.Letrick was 83. Born March 30;1902;in Charleroi;she was a daughter of the late George and Judith Ehko Mehok. Mrs.Letrick was a member of St.John the Baptist Evangelical Lutheran Church of Charleroi;the National Slovak Society and the United Lutheran Society No.70 of California. She was the last of her immediate family. Her husband;John Yon Letrick;died April 5;1966. Surviving are two sons;John E.Letrick;with whom she resided and Carl R.Letrick;both of Fredericktown;one daughter;Mrs.Steve (Catherine) Lovasic of Belle Vernon;four grandchildren and one great-grandchild. Friends will be received in the Greenlee Funeral Home;Fredericktown;Saturday from 6 to 9 p.m.;all day Sunday;and at St.John The Baptist Evangelical Lutheran Church;Charleroi;on Monday from 10 a.m.to 11 a.m.;the hour of services in the church with the Rev.Stephen Huryak;pastor;offficiating. Devotional Services will be held at 3 p.m. Sunday in the funeral home. Burial will be in Belle Vernon Cemetery;Belle Vernon;Pa. The Greenlee Funeral Home is in charge of arrangements.