Messerli, Jonathan, 1926- Horace Mann a biography by Jonathan Messerli - New York Alfred A. Knopf 1971 - xviii, 604, xxxvii p. illus. 25 cm. Bibliography: p. 591-595. ISBN: 0394429206 LCCN: 78-154905 Subjects--Personal Names: Mann, Horace, 1796--1859