 He continued to take summer boarders after the quarries closed in the 1870s, and his son expanded that business around the turn of the 20th century, building a hotel called the Oswegatchie House.The area received a boost when a trolley service was run down Oswegatchie Street from New London, and several handsome summer estates were built on the best land at the southern end of the peninsula.Trolley service ended in the 1930s, and the Great Depression led to the failure of the Oswegatchie House, which burned in 1935.