Defoe Shipbuilding Company as a Presidential Yacht. It was called the "Barbara Anne" by President Eisenhower after his granddaughter, the "Honey Fitz" by President Kennedy in honor of his maternal grandfather John Francis Fitzgerald, and the "Tricia" by President Nixon after his daughter. In 1941, the name of the company was changed to Defoe Shipbuilding Company. During World War II, all production went to the war effort. From 1939 to 1945, the company built 154 ships, including four s, 13 destroyer escorts, 11 destroyer transports (converted destroyer escorts), patrol craft, and numerous landing craft of various types. The brand-new Defoe family yacht even
Royal yacht Principality of Monaco owned the princely yacht "Deo Juvante II" between 1956-1958. This Camper and Nicholsons yacht was a wedding gift from Aristotle Onassis to Prince Rainer and Grace Kelly and was used on their honeymoon. The yacht, now called M/Y "Grace", is now owned and operated by Quasar Expeditions. Yugoslavia had some royal yachts before World War II (most notably, one was a sister ship of "Ilinden" which sank in Lake Ohrid in 2009). Zanzibar had only one naval ship in 1896, the royal yacht . It was sunk by the British during the shortest war in history, the