; born in Brooklyn, Conn.
, Jan. 7, 1799; graduated at West Point
In 1828-29 he visited France
to study improvements in artillery; and in May, 1834, he resigned and practised civil engineering.
At the breaking out of the Civil War
he became colonel of the 1st Connecticut Volunteers, and soon afterwards brigadier-general of three months troops.
Next in rank to General McDowell
, he was second in command in the battle of Bull Run
In March, 1862, he was ordered to the West
, and commanded a division of the Army of the Mississippi.
Afterwards he was employed in guarding the Upper Potomac
When the Confederate army invaded Maryland
, in 1863, he was in command at Harper's Ferry
. General Tyler
resigned April 6, 1864.
He died in New York City, Nov. 30, 1882.