Oren Root Jr. (May 18, 1838 – August 27, 1907) was an American Presbyterian minister and professor of mathematics and natural sciences at Hamilton College in Clinton, New York and professor of English at the University of Missouri. He was founder of the Zeta Phi Society as well as a member of the Sigma Phi fraternity and a high degree Freemason. He was one of the founders of the Mystic Order of Veiled Prophets of the Enchanted Realm, an appendant body in Freemasonry.[1]
He was the elder brother of Secretary of State Elihu Root.