Henry Churchill de Mille
Henry Churchill de Mille , was a noted American playwright and Georgist, and the father of film pioneers Cecil B. de Mille and William C. deMille, and the grandfather of the dancer and choreographer Agnes de Mille.
Henry C. de Mille was born to the farm at Washington, North Carolina, the son of William Edward and Margaret Blount de Mille. He received his BA and AM degrees from Columbia College in 1875 and 1879 and had studied for the ministry before choosing instead to teach and eventually serve as viceprincipal at the Lockwood Academy in Brooklyn and later teach for some semesters at the Columbia Grammar School in Manhattan.
Source: Wikipedia