The land for the library was donated by the Winthrop Mills Company, and the building was designed by the Hon. Harry H. Cochrane. Construction began in 1926 under the direction of Victor King of North Monmouth. Dedication exercises for the new library were held on July 17th, 1926. In Nov. of 2014, the library directors decided to turn the library over to the Monmouth Museum so the former library could be used to sell some of its publications, store some of its written assets, and serve as a research center for the community.