Hi Mary, I am also researching the Eichers in Louisville. I was always told that there are 2 Eicher families in Louisville. Of course, it's not even a common name in Germany, so we are probably all related in some way. Anyway, I have found some info on the 'other' Eichers along my way. My Eichers are Franz Jacob and Philippine who came over in 1876 with their sons, Philip (my g grand), Frank, and Philipena; she was pregnant with August also. They had August, Clara, and Louis after arriving.
I was in contact with a Fred Eicher about a year ago. He lives in Lou and is an 'other' Eicher. Maybe you can find him online? That's how I got in contact with him.
Feel free to email me privately and I'll share whatever I have. Deana Watson