"Minnesota, State Census, 1895," Database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MQDT-P77 : accessed 27 June 2015), Oliver Benscaster in household of Ben Benscaster, Silver Lake township, Martin, Minnesota; citing p. 5, line 15, State Library and Records Service, St.Paul; FHL microfilm 565,788.
Note: this record has the family name as "Bencaster", and has the father listed as "Ben". All other details match.