Elmer H. Hemmerle, 90, of North Huntingdon died Monday November 23, 2020 in Excela Health Westmoreland Hospital, Greensburg. He was born January 5, 1930, in Southgate, KY a son of the late Charles A. and Margaret A. (Feldmann) Hemmerle. He retired in 1994 after 40 years of employment as a manager of systems safety for Westinghouse Electric Company where he was involved in the production of the Nuclear Rocket and the Peacekeeper Launcher. He was a graduate of Newport Catholic High School. Elmer earned his Masters Degree from the University of Cincinnati in Physics and a Bachelor of Science Degree in Physics from Thomas More University. He was a member of the Immaculate Conception Church, in Irwin. In addition to his parents he is preceded in death by his wife Betty (Simpson) Hemmerle; four brothers John, Robert, William and David Hemmerle and two sisters Jeannette McCormick, Sister Mary Caroline Sister of Notre Dame. son-in-law Joseph Roitz. Surviving are five children Judith Roitz, of San Diego, John Hemmerle and his wife, Ann, of St. Louis, MN, James Hemmerle and his wife, Margaret, of Plum, Janet Radka and her husband, Peter, Panama, NY, Jeffrey Hemmerle and his wife, Janele, of High Ranch, CO,; 19 grandchildren, six great grandchildren, two great great grandchildren; sisters Laverne Neltner, of Alexandria KY, Sister Margaret Agnes Hemmerle, Sister of Notre Dame, of Covington, KY and Mary Momper, of KY. There will be no viewing or services at this time. A memorial mass will be scheduled for a later date. If desired please consider a memorial donation to Immaculate Conception Church 308 Second Street Irwin PA 15642 or the Westmoreland County Food Bank 100 Devonshire Drive Delmont PA 15626. Entrusted with the arrangements is Ott Funeral Home Inc 805 Pennsylvania Avenue Irwin.