Charla--
I'm afraid I can't be of much help to you. The name of Richard Hammon appeared only on the 1865 Illinois State Census, and we have not come across it again in our New Philadelphia research. I'm not entirely certain that the name is even Hammon--it could be Hamm. In any case, the family were indicated as being Euro-Americans.
Claire Martin
cmartin@museum.state.il.us