Walker Todd died in the New York county that has a seat of what town?
Walker Todd: Walker Todd (ca. 1786 New Milford, Litchfield County, Connecticut - August 1840 Mount Pleasant, Westchester County, New York) was an American lawyer and politician from New York. Westchester County, New York:  The county seat is the city of White Plains, while the most populous municipality in the county is the city of Yonkers, with an estimated 200,807 residents in 2016.
White Plains