WILL written on the top of monument
Not linked to family search. Spelling of last name doesn't match.
Birth 23 November 1877
New Hampshire, United States
Death 3 Jan 1910
Umatilla County, Oregon, USA
Burial Vacaville-Elmira Cemetery, Vacaville, Solano County, California, USA
https://www.familysearch.org/tree/person/G7WZ-CP1
However findagrave.com has a bit more information about Will and his family members.
https://www.findagrave.com/memorial/195672777/will-carleton
Will is the nephew of Mary Lane (Hale) Carleton and the son of Selina (Salina) Adell (Conary) Carleton buried right next to him