Hello,
It's 9-17-2013 now, but I just saw your question about Levi Bixby. He is my mother's great grandfather on her mom's side. or.....my mom's mom's dad's dad. I've been learning about my relatives since about the late 1950's, but started using Ancestry.com about a decade ago. Haven't been on for awhile, though.
How are you related to him?
Some of what I learned is that it was a cocoa plantation. Yes, there were slaves, but his son Arthur freed them before Arthur, his wife and 3 daughters sailed to New York on their way back to New Hampshire. Arthur died on that voyage and was buried at sea.
Hope you see this and answer.
Bye for now
Karen