^Herrick، Jedediah (1885)، Herrick genealogy: A Genealogical Register of the Name and Family of Herrick from the Settlement of Henerie Hericke, in Salem, Massachusetts, 1629 to 1846, with a concise notice of their English ancestry، كولومبوس: Privately printed، ص. 221
^Oliver, Charles M. Critical Companion to Walt Whitman: A Literary Reference to His Life and Work. New York: Facts on File, 2006: 318. (ردمك 0-8160-5768-0)
