Mary (Case) Schreiber; 93; of Eastmont in Wilkins Township; died Tuesday; June 5; 2012. Mary was born July 27; 1918; in Belle Vernon; a daughter of Jesse and Clara Case. She grew up in North Belle Vernon; graduated from Belle Vernon High School in 1935 and the University of Pittsburgh in 1939 with a degree in chemistry and medical technology. She later achieved a master’s degree in bacteriology. She had a varied career in local hospitals; laboratories and private practices as a medical technologist/pathologist and research chemist. She taught chemistry at Point Park College and retired after several years of lab work with leukemia specialists. Mary was also an accomplished pianist and served many years as a church organist. In addition to her parents; she was preceded in death by her husband; Gerard J. Schreiber; in 1999; and is survived by two sons; Jesse (Barbara) Case Schreiber; of Johnson City; Tenn.; and Gerard L. Schreiber; of Pittsburgh; and three grandchildren; Steven; Scott (Jessica) and Susan Schreiber; all of Tennessee. Friends will be received from 2 to 4 and 7 to 9 p.m. Friday in the STEPHEN D. SLATER FUNERAL HOME; 1701 State Route 51 (Large); Jefferson Hills; where her funeral service will be held at 10 a.m. Saturday with the Rev. Judi Slater officiating. Interment will be in Belle Vernon Cemetery; Belle Vernon. Send condolences to www.stephendslater.com.