 Its first Pribilof tender, , operated from 1917 to 1919; she was followed by from 1919 to 1930, and , which began operations in 1930.The operation of "Pribilof tenders" continued under the Bureau of Fisheries′ successor organizations, with the Fish and Wildlife Service employing MV "Penguin" on this service until 1950, followed by from 1950 to 1963, , which supplemented "Penguin II"′s service during the 1950s, and , which entered service in 1963 and continued to serve the Pribilofs after the creation of the NMFS in 1970.The 58-year history of the "Pribilof tenders" did not come to a close until 1975, when the NMFS retired and sold "Pribilof" as part of a process of turning control of the local government and economy of the Pribilof Islands to their residents.