^Naval History And Heritage Command (19 January 2017).
"Active III (Tug)". Dictionary of American Naval Fighting Ships. Naval History And Heritage Command. Retrieved 13 May 2020.
^"Foundry Notes". Mining and Scientific Press. 11 August 1888. p. 92. Retrieved 13 May 2020.
^Naval History And Heritage Command (19 January 2017).
"Active III (Tug)". Dictionary of American Naval Fighting Ships. Naval History And Heritage Command. Retrieved 13 May 2020.
^"Foundry Notes". Mining and Scientific Press. 11 August 1888. p. 92. Retrieved 13 May 2020.