[1][2][3] Farrar remained Professor of Mathematics and Natural Philosophy at Harvard University between 1807 and 1836.
[4] He retained the chair till 1836, when he resigned in consequence of a painful illness that finally caused his death.
His second wife, Eliza Ware Farrar (née Rotch), was Flemish.
He was also the first to translate mathematical works from European languages to make them available for American undergraduates.
[9] He published a translation of Lacroix's "Elements of Algebra" (1818), which he followed by selections from Legendre, Biot, Bezant, and others.