Benjamin Greenleaf was born 25 September 1786 in Haverhill, New Hampshire. He graduated from Dartmouth College in 1813 and served as Preceptor of Bradford Academy from 1814 to 1836. He then served as a Massachusetts state legislator from 1837 to 1839. After serving in the state legislature, he took charge of the Bradford Teachers’ Seminary, leaving there in 1848. He wrote numerous mathematics textbooks over his lifetime. He died 29 October 1864 in Bradford, Massachusetts.
Common School Arithmetic by Benjamin Greenleaf. Published by Robert S. Davis & Co., Boston, 1855.