What a marvelous piece of history you have been given. As a collector digger and dealer I am amazed at the amount of people that have a mystery collection stashed away. I have helped disperse a couple collections over the years and would be interested in looking at yours. And to help in any way with sorting and identifying what you have. if interested you can message me on a private email. I am in SW Mich also
Thanks and Good luck with your fortune.