Before his graduation he was appointed Rector of the Hopkins Grammar School, in New Haven, and he acted in that capacity during the last term of the college course.
By these double duties his health was impaired, and in November, 1816, he went South for a year, spending the time as private tutor in a family in Fauquier County, Va.
He resigned this professorship in 1843, but continued to reside in Amherst till 1858, when he removed to Durham, Conn, where he died, after a brief illness, of pneumonia, January 15, 1881, in his 88th year.
In 1858 he published Memorials of the Chaunceys; in 1863, The Sectional Controversy; in 1866, a History of Durham; in 1872, a treatise on Local Law in Massachusetts and Connecticut; and later several collections of Essays.
Professor Fowler was married, July 21, 1825, to Harriet, third daughter of Dr. Noah Webster, and widow of Edward Cobb, of Portland, Me.