I'm trying to find more history about my great, great, great grandparents Clara (Kern) & Nicholas Niederkohr. I know came to America in the 1840's. But all the information I have is that Nicholas came here with 2 sons and 3 daughters. I have the rest of the infomation after they got here. But I would like to know where they actually came from and if there was a different spelling to the last name.