Ottumwa was a city in Iowa.
In 2038, Walter O. Raymond, the son of Cheryl G. Raymond and Wil W. Lachance Raymond, was born in this city. (TNG-R: "The Neutral Zone", okudagram)
This information came from the remastered Clare Raymond family tree. Walter O. Raymond was named after Walter O'Reilly, a character from the dramedy M*A*S*H. This character was from Ottumwa.