 He taught at Sewanee and went on to serve as Vice-Chancellor (President) then, after his election to the episcopate, served as the VIII Chancellor of the University of the South in Sewanee, Tennessee (June 23, 1908, until his death).In 1916 Gailor was elected president of the House of Bishops, and at the 1919 General Convention he was elected president of the National Council of the Episcopal Church.He served in this position until 1925, when the Episcopal Church's first elected presiding bishop began his six-year term.