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
Henry Fitz and grinding glass. By the 1840s Fitz had turned his amateur astronomer hobby into a successful business building telescopes. Fitz pioneered techniques of correcting poor quality glass which made him one of the first important American telescope makers. He was the first American to make "very large" professional refracting telescopes. Fitz made the largest refractor telescopes in America, five different times. Fitz made forty percent of all the telescopes sold in the United States from 1840 to 1855. He also manufactured eighty percent of all astronomical telescopes made in the United States at this time. American made telescopes were significantly