The current library building was donated to the Borough of Ho-Ho-Kus for use as a public library by Caroline Mildreth Worth Pinkham upon her death in 1984. Mildreth, as she preferred to be called, was an established scholar and writer, known for her interest in comparative religion and love of travel. In 1941, she was the first woman to earn a Ph.D. from Columbia and Union Theological Seminary in the History and Comparative Study of Religion.
Books authored by Mrs. Worth Pinkham include A Bungalow in India; The Status of Woman as Reflected in the Puranas, the Mahabharata, and the Ramayana; The Common Heritage; and Confucius Says: Woman and the Family in World Scriptures, along with many articles. An archive of her papers exists at Columbia University.