Robert Dalrymple, a retired colonel in the Army Corps of Engineers, died peacefully May 30, 2018, at the age of 100.

Dalrymple graduated from the University of Illinois in 1938 with a bachelor’s degree. During World War II he served as a paratroop company commander in the Battle of the Bulge. He continued in the Army until he retired as a full colonel in 1965.

In 1948 Dalrymple earned a master’s degree in civil engineering from Princeton. After his retirement from the Army, he began a second career as a professor at Metropolitan State University in Denver, Colo.

In 1978 he retired a second time and moved to Green Valley, Ariz. Dalrymple loved singing, and in Green Valley he led the “Lonesome Cowboys” singing group.

He was predeceased by his first wife, Garnet, in 2006. He is survived by their three children and numerous grandchildren and great-grandchildren. In 2009, he married Marya Giesy, his beloved friend and neighbor, who survives him as well.

Graduate alumni memorials are prepared by the APGA.