At Princeton he joined Dial Lodge and majored in mechanical engineering. His activities included IAA football, basketball, softball, and billiards. Senior year he roomed with David Rawnsley and Kenneth Norwood.
After graduation he married Barbara Joan Greenleaf and served for two years in the Navy aboard the USS Salem as a main-engines officer. Later he earned a master’s degree in marketing and sales from Indiana University Northwest.
After the Navy he began his working career with SKF in St. Louis, Mo., and was president of Atlas Copco in New Jersey. He eventually started his own business, Enviroserve, a radon-detector laboratory and testing company in Morris Plains, N.J., that he ran for 23 years. His hobbies included golf, flying gliders, ocean fishing, hunting, painting, bicycling, gardening, and playing musical instruments.
Donald is survived by his wife of 65 years, Barbara; son Douglas; four grandchildren; and five great-grandchildren. He was predeceased by sons David and Donald.