Johannes "John" De Peyster Douw (January 20, 1756 – February 22, 1835) was an American merchant, lawyer, soldier and civic leader.
[1] He was the eighth of nine children born to Anna (née De Peyster) Douw (1723–1794),[2] and Volkert P. Douw, who served as Mayor of Albany and a New York State Senator and was a close friend of General Philip Schuyler.
[4][5] His maternal grandfather was Johannes de Peyster III, who also served as mayor of Albany.
He joined the Continental Army, serving as an ensign in the Rensselaerswyck company of the Albany County militia, and the commissary department.
Before his wife died on January 20, 1802, they were the parents of:[2] His third marriage was in 1811 to his twenty-nine year old cousin Catherine Douw Gansevoort (1782–1848), when he was fifty-two.