Obituary from The New York Times:
Prof Alpheus Crosby, an eminent scholar and an author of some note, died at his residence in Salem Mass on Friday last, of softening of the brain. He was born in Sandwich, NH Oct 13, 1810 and was, therefore, nearly sixty-four years of age. He graduated from Dartmouth College in 1827; was preceptor of Moore's Charity School at Hanover, 1823-31, and Professor of Latin and Greek at Dartmouth College, 1833-37. He was Principal of the State Normal School, Salem from 1857 to 1865; has published Greek text-books, an edition of Xenophon's Anabasis, First Lessons in Geometry and an Essay on the Second Advent. Prof Crosby was brought up in the Congregational faith but while at Hanover changed to the Unitarian faith, adn at the time of his death was a prominent member of the Unitarian Church of Salem. He was twice married, the first time to a Miss Cutler of Newburyport and the last time to Miss Kingman of Bridgewater. He was an advanced thinker, a man of liberal ideas, a prominent member of the American Peace Society, and a radical anti-slavery man. So strong was his belief in the equality of the races, that he adopted two colored girls as daughters, having no children of his own--an act which provoked much comment. The deceased leaves a wife and the two adopted daughters mentioned.