Zealton Fenn, the son of Daniel C. Fenn and Elizabeth Ann Poor, was born 19 November 1850. He died 15 December 1908 in Big Rapids, Mecosta, Michigan, at the age of 58. The cause of death was obstruction of bowels with a strangulated hernia.
This picture of Zealton Fenn was found in Hattie's Bible. "My oldest brother" is written on the back of the photo in what I am guessing is Hattie's handwriting.