Rotterdam – Edwin C. Underkoffler, 92, passed away in the comfort of his home on Saturday, December 24th, 2022. Born in Philadelphia, PA on March 10th, 1930 to the late Clyde and Mary (Dikon) Underkoffler, Ed grew up and was educated in Williamstown, PA. After graduating from Williamstown High School, he attended Electrical Technical School. Ed honorably served his country in the United States Army and was stationed in Germany. He married his beloved wife, Laura Miller Underkoffler, on September 2nd, 1950. Ed worked as a research engineer at General Electric Research and Development for over 40 years. He is survived by his wife of 72 years, Laura Miller Underkoffler; his children, Susan Schaffer and Michael Underkoffler (Eileen); grandchildren, Zackery Schaffer, Kody Schaffer, Elizabeth Underkoffler and Jonathan Underkoffler and one great-granddaughter, Koda Schaffer. He is also survived by one brother, Philip Underkoffler (Carolyn); brother-in-law, Robert Bettleyon; nieces and nephews, Vicki Sponaugle (Kirk), Amber Schultz (Kris), Leslie Gates (Adam), Lara Silvis (Jasper) and Douglas Underkoffler as well as numerous other nieces and nephews, great-nieces and nephews and great-great-nieces and nephews. Besides his parents, Ed was predeceased by his siblings, David Underkoffler and Nana Bettleyon and nephew, MarcJon Bettleyon. Services honoring Ed’s life will be private. He will laid to rest at Schenectady Memorial Park in Rotterdam. In lieu of flowers, contributions in Ed’s name may be made to Messiah Lutheran Church at the address above.