After returning to Wisconsin in 1963, he worked at the University of Wisconsin for over 30 years, first at the Primate Center and then at the center of Limnology, where he built testing equipment and maintained the research boats. He loved being near and on the water. Upon retirement from the University, he worked as a lock tender at Tenney Locks, where he made every boat patron smile. After fully retiring, Glen tended to all the local squirrels and birds, making sure they were fed every day. He often went fishing, even enjoying ice fishing.
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