David L. Schwenk, 73, of Coopersburg, passed away at his home in the presence of his family Tues., Dec. 5, 2017. He was the loving husband of Mary Ann E. (DeMichael) Schwenk for 48 years. Born in East Greenville, he was a son of the late Frederick and Irene (Gehris) Schwenk. David had a Bachelor of Science degree, and specialized in Engineering. For 15 years he was a software tester for Ascensus in Drescher, working until July of this year. Previously he was employed with AT&T Bell Labs in Murray Hill, NJ for many years. He attended Calvary Bible Fellowship in Coopersburg. David's family was the center of his life, and more than anything he loved time spent with his grandchildren. His faith was the strength of his personhood. He was an avid gardener, planting flowers and vegetables alike. David loved Lionel trains, Christian and Christmas music, reading books (especially the Bible) and fishing. He also enjoyed collecting coins and stamps. Surviving with Mary Ann are their children: Heather E. Schwenk of Coopersburg and Jason Schwenk and his wife Andrea of North Wales; 5 grandchildren; and siblings: Grace Long, wife of Richard of Red Hill; Frederick Schwenk and his wife Betty of Souderton and Barbara Bartholomew, wife of Michael of Boyertown. He was preceded in death by a daughter, Alyson Anne Schwenk. Memorial service will be held at 1:30 PM Sat., Dec. 16 in Calvary Bible Fellowship, 6782 N. Main St., Coopersburg. In lieu of flowers, memorials may be sent to: MITO Action, PO Box 51474, Boston, MA 02205.