To support the World War 2 demand for ships Anderson & Cristofani shipyard switched over to military construction and built: US Navy APC coastal transports, tugboats, Patrol Boats and Minesweepers.
Anderson & Cristofani was started the early 1870s building San Francisco Bay scow schooners, which they built till the mid-1930s.
Henry P. Anderson, a shipwright from Denmark first worked at John Dirks’ boatyard when he arrived in 1893.
[1][2] Anderson & Cristofani built troopships of the APc-1-class small coastal transports design.
[3][4] Anderson & Cristofani built Accentor-class minesweepers, which had a similar design as the APc-1-class small coastal transports, but were fitted for removing mines: Anderson & Cristofani built US Navy Large harbor tugboats, a Cahto-class district harbor tug these were 410 long tons and a length of 110 ft. Harbor tugs (YT) were named after American Indian tribes: