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In page William H. Morris:

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After the war Morris lived on his estate, Briarcliff, in Putnam County, New York.[1] He edited the New York Home Journal. He also served at the Constitutional Convention of the State of New York, as a delegate for Putnam County in 1866. Like his father, he continued to serve in the New York State Militia, as the Chief of Ordnance of the State of New York as brigadier-general, 1869-1870 and inspector-general 1873-1874.