I thought that maybe I could help you with your Thomas Turk, somehow.
There is a great website that has scanned images of the county histories in Michigan.Your Thomas Turk, seems to have been a very generous man, to those in need.
click on Digital Library Production services next click on collections next screen scroll down until you find Michigan County histories.
When you come to the search bar you will want to type in lowercase letters in the name that you want to research.I typed in Sharp and came up with 100+ links.It will take time. But if you find them, it will be well worth the effort.This website I have bookmarked and use it all of the time.