 Numbered among his ancestors were Isham Randolph, Robert "King" Carter, Jaquelin Ambler and Myles Cary.His mother was Jane St. Clair Cochran, a daughter of George Moffett Cochran, Sr., and his wife, Maria T. Boys, daughter of Dr. William Boys, of Philadelphia & Staunton.His maternal great grandfather, whose name he bore, was Col. George Moffett, a distinguished officer in the Colonial forces and the Revolutionary Army.