Ancestry: Richard Miller Devens; Samuel Devens
- Father: Richard Miller Devens; (1824 – 1900) (Samuel Devens & Rachel Nable Carver)
- Mother: Catherine V. H. Oakes; (1827 – 1855)
Died: 1864 in the Civil War “near Madison Ga.”
- Buried: National Cemetery at Marietta Ga.; Horace’s name is on the Headstone with his parents & brother Robert O. Devens in Cataumet Cemetery; area A.