Ancestry

I have a friend who recently told me he is doing a free trial on Ancestry.com. It sounded interesting, so I decided to try it, too. Unfortunately, I got stuck pretty early on, as it struck me, somewhat sadly, that I know very little information to even start with. I told my friend, well, I know there are some Klammers and Klatts I have heard of. Pretty sure the Klatts are Dad's side and Klammer's Mom, but that's about all I know. Something about Frankenmuth, Michigan, right? And, of course, Minnesota. Can anybody do better than me? I did find that Grandpa Schoewe had to register for WWI.