Rev. Hiram Collins Haydn (December 11, 1831 – July, 31, 1913) was an American minister and the fifth President of Western Reserve University, now Case Western Reserve University.
While president at Western Reserve from 1897–1890, he most notably ended coeducation, instead creating a coordinate system solution[clarification needed], establishing the College for Women, later named Flora Stone Mather College.[3]
Wrote "The History of Presbyterianism in Cleveland," published in 1893 by Winn and Judson,[4] and wrote much of "Annals of the First Presbyterian Church of Cleveland, 1820-1895," in 1895, also published by Winn and Judson.[5]