; born in Tyrone county, Ireland
, Jan. 12, 1792: was brought to America
by his parents in his early youth; engaged in
mercantile pursuits; but entered the army in 1813; was made full captain in 1814, and served to the end of the war. He resumed mercantile life and became largely interested in manufactures.
Commissioned major-general of volunteers when the war with Mexico
broke out, he took an active part in the campaign under Scott
from Vera Cruz
to the city of Mexico
When the Civil War
broke out, he was placed in command of a division of three months men, and was assigned to a military department composed of the States of Pennsylvania
, and Maryland
, and the District of Columbia.
In command of troops watching the forces under the Confederate General Johnston
at Winchester, Va.
, the failure of General Scott
to send him orders for which he had been positively directed to wait, caused him to fail to co-operate with McDowell
in his movements that resulted in the battle of Bull Run
(q. v.). For this failure he was unjustly dismissed from the service, and he was under a cloud for some time.
Documentary evidence finally exonerated him from all blame.
He did not re-enter the service.
He died in Philadelphia, Pa.
, Aug. 7, 1881.