Leary was born in Baltimore, Maryland, and attended the public schools. He graduated from St. Mary's College of Baltimore in 1833, and afterwards moved to Louisville, Kentucky. He returned to Baltimore in 1837, and served as a Whig member of the Maryland House of Delegates in 1838 and 1839. He studied law, was admitted to the bar in 1840, and commenced practice in Baltimore. He was also a presidential elector on the American Party ticket in 1856.
Leary was elected as a Unionist to the Thirty-seventh Congress, where he served from March 4, 1861, to March 3, 1863. After his term in Congress, he resumed the practice of law in Baltimore, where he died. He is interred in Lorraine Cemetery.
|United States House of Representatives|
James Morrison Harris
|Member of the U.S. House of Representatives
from Maryland's 3rd congressional district
Henry Winter Davis
This article incorporates public domain material from websites or documents of the Biographical Directory of the United States Congress.