May God bless you and your...
Mark was a great friend and an even better person. His wife and children were his great pride and joy, and he spoke of them often. Never without a new project or adventure, he embraced life with all of its possibilities. I was honored to know him for over four decades, and will miss his camaraderie, his curiosity, his know-how, and his humor. My deepest sympathies to his loving family.
Jim Koeper
December 13, 2019



