Jo Marie McGlothlin, W. E. Singletary To Wed in June Mr. and Mrs. Jim McGlothlin announce the engagement of their daughter, Jo Marie, to William E. Singletary, son of Mr. and Mrs. W. J. Singletary of Port Arthur. The wedding is planned for June 28 in the chapel of the Austin Avenue Methodist Church, Waco. Miss McGlothlin is a graduate of Gatesrille High School and a Waco business college. She is employed employed in the office of the Air Force Plant Representative,. McGregor. McGregor. . . Her fiance is a graduate of Rusk High School and received his B. S. degree in industrial engineering from Lamar State College of Technology, Technology, where he was vice president president of the Student Chapter of Texas Society of Professional Engineers Engineers and vice president of the Industrial Engineering Club. He is employed by Astrodyne,' Inc., at McGregor.