Special Collections and University Archives, W.E.B. Du Bois Library, University of Massachusetts Amherst
Josiah Green and Co. Records
Draper, James, History of Spencer, Massachusetts..., 2nd ed. (Worcester, Mass.: Henry J. Howland, 1860).
Marvin, Abijah Perkins, History of Worcester County, Massachusetts..., vol. 2 (Boston: C.F. Jewett, 1879).
Tower, Henry M., Historical Sketches Relating to Spencer, Massachusetts..., 4 vols. (Spencer, Mass: W.J. Heffernan, 1901-1909).