William C. (William Chandler) Bagley

Born in Detroit on March 15, 1874, he became an influential American educator, editor, and writer. Reliable reference sources describe him as a major advocate of educational essentialism, a movement that pushed back against some progressive school reforms and emphasized core subjects, trained teachers, and intellectual discipline.

He studied at Michigan State Agricultural College, earned a master's degree from the University of Wisconsin, and completed a Ph.D. at Cornell. Over the course of his career, he taught at several teacher-training institutions and universities, and later served on the faculty of Teachers College, Columbia University, where his ideas reached a wide audience through teaching, editing, and publishing.

Bagley wrote extensively on education, including books on teaching, school discipline, and educational psychology. He died in New York City on July 1, 1946, but his work remains part of the history of American debates over what schools should teach and how teachers should be prepared.