Emma Flower Taylor Mansion  Emma Flower Taylor Mansion is a historic home located at Watertown in Jefferson County, New York. It was built in 1896–1897 and is a massive -story mansion constructed of rock faced, random course Medina sandstone which was hand-cut on site. The footprint is , not including the porches and porte cochere. It is Queen Anne in style and features wraparound porches, towers, projecting bays, dormers, and a complex roofline. It was constructed as a wedding gift to his daughter by New York Governor Roswell Pettibone Flower. It was listed on the National Register of Historic Places in 2002.