The library began as a home-based reading center to which Mrs. Emily Heintzelman gave many books. The land for the original building was deeded to the trustees of the Heintzelman Library by Laura A. and Scott Barton. In 1907 the stone and wood building which first housed the Horicon Free Public Library was completed and inscribed as the Heintzelman Library. Twenty-five years later, the town of Horicon assumed responsibility and to the present year, the library has been tax supported. In 2001, the Town built a Community Center, including a larger library. This enabled us to meet state standards, and to accommodate the increasing needs of the community. The library is a member of the Southern Adirondack Library System