Background
He was the son of Abijah Mann (1761–1856) and Levina (Ford) Mann (1768–1813).
politician member of the New York State Senate
He was the son of Abijah Mann (1761–1856) and Levina (Ford) Mann (1768–1813).
They had several children, among them Doctor Matthew Derbyshire Mann (1845–1921) who was one of the physicians who treated President William McKinley after he was shot in 1901. He was among the 12 state senators who resigned on April 17, 1851, to prevent a quorum in the Senate.
He was a member of the New York State Assembly (Oneida Company) in 1840. He was a member of the New York State Senate (19th Doctorate) in 1850 and 1851.