Hello, My name is Michael J. Kurtzweil I live in Muskegon MI. My father was Marvin J. Kurtzweil. I grew up not knowing my him or his side of the family. I do know that his father was Marvin F. Kurtzweil. From there I am completly clueless as to where the line goes if you can please help by shareing any information that you can I would greatly apriciate it.