Donald John McCormick, age 93 of Lowell, passed away October 25, 2016. He is preceded in death by his wife, Patricia; parents, Thomas and Emma McCormick; twin sister, Dorothy Ann Sullivan-Geisell; siblings, Thomas Joseph McCormick Jr., Francis Edward McCormick, and Louise Mary Hennessey. He is survived by his children, Linda (Mark) Todd, Douglas McCormick, Mark (Michele) McCormick, Gary (Denise) McCormick; grandchildren, Carrie Todd (Jon Vredevoogd), Heather Todd, Kelly Todd (Cory Zemaitis); great-grandchildren, Grayden and Quinn Zemaitis, and Colette Kanngiesser. Donald served in London during World War II. Private services were held.