The newly sold Hannibal is in the same register under Steamers "H".
Construction & Repair Bureau (Navy) (1 November 1918). Ships' Data U.S. Naval Vessels. Washington D.C.: U.S. Government Printing Office. pp. 278–281. Retrieved 1 April 2021.
Construction & Repair Bureau (Navy) (1 January 1938). Ships' Data U.S. Naval Vessels. Washington D.C.: U.S. Government Printing Office. pp. 228–231. Retrieved 1 April 2021.
Bryan, G. S. (1940). "Oceanographic activities of the Hydrographic Office and the United States Navy during 1939". Transactions, American Geophysical Union. 21 (2): 333–339. Bibcode:1940TrAGU..21..333B. doi:10.1029/TR021i002p00333.
harvard.edu
ui.adsabs.harvard.edu
Bryan, G. S. (1940). "Oceanographic activities of the Hydrographic Office and the United States Navy during 1939". Transactions, American Geophysical Union. 21 (2): 333–339. Bibcode:1940TrAGU..21..333B. doi:10.1029/TR021i002p00333.
ibiblio.org
Naval Historical Center (Naval History And Heritage Command) (16 November 2004). "USS Hannibal (1898-1945, later AG-1)". HyperWar, archive of NHC "Online Library of Selected Images". Retrieved 1 April 2021.
navy.mil
history.navy.mil
Naval History And Heritage Command (14 July 2015). "Hannibal". Dictionary of American Naval Fighting Ships. Naval History And Heritage Command. Retrieved 1 April 2021.
Naval History And Heritage Command (28 April 2017). "The Spanish Campaign Medal". Decorations and Awards. Naval History And Heritage Command. Retrieved 1 April 2021.