Evan W.Thomas;75;of 924 Fayette Ave.;Belle Vernon;died at 5 a.m. Wednesday;March 17;1982;at Mease Hospital and Clinic in Dunedin;Fla. He was 75. Mr.Thomas had been wintering in Florida since November. Born in Scranton April 2;1906;Mr.Thomas lived in Belle Vernon for most of his life. An employee of the Wheeling-Pittsburgh Steel since age 15;at his retirement 11 years ago;Mr.Thomas was supervisor of the Mechanical Maintenance Dept.there. He was a master mechanic by trade. A member of the United Methodist Church of Belle Vernon;he also was a past master of the F&AM Lodge 643 of Belle Vernon and a member of the Syria Temple Shrine of Pittsburgh and Mon Valley Caravan No.17. Survivors include his widow Mary Stanger Thomas;a son;E.Richard Thomas of Greensburg;and three half-sisters and one half-brother. Friends will be received at the Rhome Funeral Home Inc.;1209 Grand Blvd.;Monessen;Thursday from 7 to 9 p.m. and Friday from 2 to 4 and 7 to 9 p.m. Masonic services will be held at the funeral home Friday at 7:30 p.m. Services will be held Saturday at 11 a.m. in the chapel of the funeral home;with the Rev.William D.Morgan;pastor;Wesleyan United Methodist Church;Connellsville;officiating. Burial will be in Belle Vernon Cemetery. The Rhome Funeral Home;Inc.;is in charge of arrangements.