Traci, My grandfather was a Charles Kops, but he was born and died in Muskegon, Michigan. He had a cousin John. I'm not sure if John was born in Germany or USA, but, he died in Michigan. The name "Kops" is a variation of Kopp, that is why I listed in the Kopp Forum.
I'm sorry that I could not help you. Good luck in your searching. I thought that Kops/Kopp/Koop/etc was a small name group, but there are a lot out there in the USA and around the world.