Donald R. Mahaney ’55

Don died peacefully at home Nov. 18, 2020, from chronic debilitating illnesses that did not prevent him from working on that day to satisfactorily solve some problems for his business.

He was a graduate of Scarsdale High School. At Princeton he graduated with high honors in chemical engineering, and he later earned an MBA with distinction from Harvard. As an undergraduate, Don was on the freshman football and lacrosse teams and the JV lacrosse team, and he participated in IAA sports. He joined Campus Club and roomed with Jim Lindsey. He participated in the Campus Fund Drive, the Sophomore Advisory Committee, and other activities.

Shortly after graduating, Don married Margaret Smith, a high school classmate. Margaret became a minister of the United Church of Christ and was instrumental in initiating hospice in northern Westchester County and in pastoral activities. They lived most of their life in Chappaqua, N.Y., near Mount Kisco, where Don worked with his family’s Zierick Manufacturing Corp.

Don was active in the Chappaqua Congregational Church. He was an Eagle Scout and continued in Scouting and environmental community activities. He loved sailing, hiking, reading, and his three Labrador retrievers.

Don was predeceased by son Roger. He is survived by Margaret, son Brad, daughter Marilyn Boyle, and three grandsons.