Yes, you have the William R Finney (1852-1921) I am trying to find. His first wife was Annie Rucker.They had 3 boys: John Henry, Valentine Crawford, and James Adams.
Valentine Crawford Finney (1876-1943) married Minnie Clemintine. They had a son named Benjamin Morris Finney (1900-1968). In the WWI registration for the draft, he signed his name as Ben M Finney. Ben Finney also went by the names Vernon and Tex. He was married to Ilma Cassity who I believe was Cherokee - but that may be family rumor. Ben Cassity died in New Mexico by drowning - which is also strange because he was supposedly an avid swimmer. Ben & Ilma Finney had a son named Sherman L Finney (1925-2005). He had 3 known daughters, but I believe they had different mothers.
Any information about any of these Finneys would be appreciated.Also, the picture sounds great!:) Is is possible for you to scan it and email the photo? firstname.lastname@example.org