Frank Dean was born in Easton, Pennsylvania on October 13, 1891. Little is known of his childhood or early education. Dean became a globetrotter, and earned a "bachelor of medicine" degree from the University of Warsaw prior to World War I. Dean reportedly earned his chiropractic doctorate in 1917 from the Standard School of Chiropractic in New York City. However, the Standard School was not founded until 1919, the same year that Dean reportedly established the Columbia Institute of Chiropractic.