I was doing some searches in Google Books to see if I could find any that contained mentions of my ancestors. With a surname like Panther, you find a lot of books that mention encounters with a member of the large cat family. So I searched for the name of my great-grandfather, Aloys Panther in quotes. I didn't find anything so I did a search for his brother's name, Ferdinand Panther in quotes. I found a book titled "Reports of Cases at Law and in Equity Determined by the Supreme Court of the State of Iowa".
Check out Google Books. You'll find more there than just published books. You might even find mentions of them in court proceedings.