^Worcester (Mass.) Board of Trade (1910)، The Worcester Magazine:Devoted to Good Citizenship and Municipal Development, Volume XIII، ورسستر: Worcester (Mass.) Board of Trade، ص. 161.
^Teller، Henry M. (1866)، Massachusetts in the Rebellion : A Record of the Historical Position of the Commonwealth, and the Services of the Leading Statesmen, the Military, the Colleges, and the People, in the Civil War of 1861-65، بوسطن: Walker, Fuller & Co.، ص. 304.
^Teller، Henry M. (13 يونيو 1906)، 59th Congress 1st Session, Senate Document 489; Proposed Volunteer Retired List; Military Record of Augustus B. R. Sprague in the United States Volunteer Army of the Civil War, 1861-1865، واشنطن العاصمة: U.S. Government Printing Office، ص. 94.
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