Worked with Don for many years at HNTB - great person & engineer. He will be missed
Don was wonderful to work with. I will miss his commitment to engineering and Hamilton County.
Don was a great person. Fun to talk with and he will be missed
A pleasure to work with, and more importantly, an ansolute pleasure to have known.
A true gentleman and a happy person to be around.
A fine gentleman who will be missed by his many friends, especially collectors with whom he shared so much.