Joseph Fort Newton was born in Decatur, Texas, the son of a Baptist minister turned attorney. He attended Southern Baptist Seminary, and Harvard University. While at Harvard he studied under William James. Newton held the honorary degrees of Doctor of Hebrew Literature (Coe College, 1912), Doctor of Divinity (Tufts University, 1919), Doctor of Humane Letters (Hobart and William Smith Colleges, 1926), and Doctor of Laws (Temple University, 1929). Newton was ordained a Baptist minister in 1895.