Walter Hearst Schlag, 96, of Glenshaw, PA passed away on Monday, December 21, 2020. He was the son of Helen (Hearst) Schlag and Arthur Emmanuel Schlag.   He is survived by his nephews, David (Jean Ann) Weating of Van Wert, OH and Douglas (Diane) Weating of The Villages, FL and other great nieces and nephews.  He was preceded in death by his sister, Elizabeth Weating, her husband, Ernest Weating as well as by his parents. Walter was a graduate of Antioch College in Yellow Springs, OH, where he possesses a BS Degree in Chemistry.  He took some graduate courses at the University of Pittsburgh. Walter was a member of Glenshaw Presbyterian Church where he served as a Deacon, Elder, and on the nominating committee.  He also sang in the choir for 41 years.  Walter enjoyed travel having visited five continents.  He was an avid photographer who loved sharing pictures of his trips and flowers with others.  Previously, Walter served three years in the Navy Seabees on Guam during WWII. On the casual side, Walter was an amateur thespian and enjoyed amateur sports.  He played tennis, mush ball, softball, and basketball.  Walter also was a gardener, having had a 50 x 100 ft. vegetable and flower (Dahlia) garden for 25 years at the Schlag Farm. Walter was a member of the American Chemical Society and the Society for Analytical Chemists of Pittsburgh.  He worked most of his years near the Pittsburgh area. A Memorial Service will be held at a later date.  Memorials may be sent to the Glenshaw Presbyterian Church Memorial Fund, 300 Glenn Ave., Glenshaw, PA 15116.  Interment will be at Mt. Royal Cemetery, Glenshaw, PA in the Veterans section. Arr. by Bock Funeral Home, Ltd. Glenshaw.