John Mason (1766–1849) was the son of the famous "Founding Father" George Mason of Gunston Hall. Both father and son were owners of Analostan Island in the Potomac River, more well known as Roosevelt Island.
John Mason was considered a leader of Washington society. He was a wealthy merchant and president of the Bank of Columbia. He also served as a brigadier general of the District of Columbia militia from 1802–11.
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Original photos and page 2007 | Updated September 23, 2022