- Ph.D. in physics — Northwestern University (1968)
- M.S. in physics— Northwestern University (1963)
- B.S. in education— Concordia College (1959)
Donald Koetke’s field of active research is experimental nuclear and elementary particle physics. Along with colleagues and students at Valparaiso University and other universities and national laboratories, he collects data at particle accelerators for the purpose of studying the features of nature on the smallest of scales.
- Sub-nuclear physics
- Spending time with his children and grandchildren