Mar. 21, 1858 Charlestown Clark County Indiana, USA
Zachery was the son of Robert Henthorn Sr. and Mary Francis (Nicholson) Henthorn.
He was a brother to Elijah Henthorn, Azor Henthorn, Nancy (Henthorn) Stowers, William Henthorn, Robert Henthorn Jr., Jackson Henthorn, Amos Henthorn, Emily (Henthorn) Bottorff, Mary Ann (Henthorn) Kepheart, Ruth (Henthorn) Nicholson, Jefferson Henthorn, and Enoch Henthorn.
He was married to Jerusha Ann Lewellen.
They were the parents of Emily Ellen Henthorn, Mary Jane Henthorn, Thomas Lowry Henthorn, Amos Martin Henthorn, John Andrew Henthorn, Nancy Ann Henthorn, Sarah Elizabeth Henthorn and Laura Isabella Henthorn.