The Underhill Society of America is a non-profit family genealogical society that was organized in Brooklyn, New York, on June 16, 1892. The Society was incorporated in 1903. The purpose of the Underhill Society of America is to perpetuate the memory of Captain John Underhill and his descendants. Captain John Underhill was an important figure in Colonial America, having arrived from England in 1630 to form the colonial militia of the Massachusetts Bay Colony. He and his descendants served in important roles in American life from the military, to politics, business, finance, and industry.