Jonathan Mason (September 12, 1756 – November 1, 1831) was a Federalist United States Senator and Representative from Massachusetts during the early years of the United States.
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Early life
Mason was born in Boston in the Province of Massachusetts Bay on September 12, 1756. He was a son of Jonathan Mason (1725–1798) and Miriam (née Clarke) Mason (1724–1794).
He attended Boston Latin School the College of New Jersey (now Princeton University), graduating in 1774. After studying law, he was admitted to the bar in 1779.
Career
In 1780, Mason delivered the annual address marking the Boston Massacre.
Starting in 1795, Mason was a partner in the Mount Vernon Proprietors, a developer of real estate in Boston's Beacon Hill neighborhood. Around 1800 he built a mansion for himself on Mt. Vernon Street, in which he lived through the end of his life. Around 1804 he hired architect Charles Bulfinch to design 4 houses, also on Mt. Vernon Street, for each of his daughters; the 4 houses still stand today.