Naval officer; born in Boston
, Jan. 16, 1807; entered the naval service as midshipman in 1823; was one of the chief organizers of the expedition against Port Royal, S. C.
, in 1861, in which he bore a conspicuous part.
For his services during the Civil War
received the thanks of Congress and promotion to the rank of rear-admiral.
In 1865 he became superintendent of the Naval Observatory
, and in 1867 he was made commander-in-chief of the American
squadron on the coast of Brazil
In 1870 he was appointed to the command of the Norfolk
navy-yard, but afterwards returned to the observatory.
He was a recognized authority on tidal actions and published several works on that subject.
He died in Washington, D. C.
, Feb. 18, 1877.