Wil W. Lachance Raymond was a Human born in Burbank, California in 2011. He married Cheryl G. Raymond, and they had one son named Walter. Wil died in 2088. (TNG: "The Neutral Zone", okudagram)
The name of this character was never mentioned in dialog; the name came from the remastered Clare Raymond family tree.
Wil W. Lachance Raymond was named after TNG actor Wil Wheaton
. Wheaton was born in Burbank, and he played the character "Lachance" in the movie Stand By Me.