Jefferson la chiec du thuyen đau tien cua My. No đuoc so huu boi George Crowninshield Jr. Du thuyen nay chu yeu la mot thu vui, nhung no cung đa hoan thanh cac muc đich khac, bao gom tau cuu ho, tham gia vao Chien tranh 1812, va mot chiec thuyen đanh ca.


Lich su Jefferson la chiec thuyen đau tien cua My đuoc thiet ke đac biet đe su dung nhu mot chiec du thuyen. Du thuyen đuoc đong tai Salem vao nam 1801 cho Crowninshield. No đuoc đat ten theo ten cua Tong thong Hoa Ky Thomas Jefferson. Du thuyen tiep theo cua ky luc la Diver, lam cho John Cox Stevens nam 1802. Cac du thuyen sau la Trouble, Wave, Onkahie, Ginicrack, va Maria. Jefferson đa chung to no la mot con tau chay tot tren mat nuoc. Cleopatra's Barge đuoc đong nam 1816, khoang muoi lam nam sau khi Jefferson đuoc ra mat.
Chieu dai cua du thuyen buom la 35 feet 10 inch va suon ngang cua no la 12 feet 4 inch. Chieu sau duoi mat nuoc cua du thuyen la 6 feet va no co trong tai 22 15⁄95 tan My. Christopher Turne, a Salem shipwright, was the yacht's builder. Christopher Turne, mot nguoi đong tau cua Salem, la nguoi đong tau. No đa đuoc ra mat thang 3 nam 1801, o Turne. Crowninshield su dung Jefferson o Vinh Massachusetts (sau đo goi la Vinh Salem). Du thuyen đuoc thiet ke an toan va thoai mai. Chiec du thuyen đau tien cua Hoa Ky trong hon mot thap nien đa đuoc Crowninshield va gia đinh ong dung lam thu vui. Mot trong nhung niem đam me cua Crowninshield la sau mot con bao ong se đi ra Vinh Massachusetts voi chiec tau va tim kiem cac tau gap rac roi can đuoc giup đo.
Crowninshield la mot tin đo vung tin trong chinh sach tan cong tau cua đoi phuong tren mat nuoc truoc khi ho co the gay ra bat ky thiet hai. Gia đinh la mot trong so nhung nguoi đau tien đe cung cap thuyen cho nhung nguoi ti nan trong Chien tranh nam 1812. Jefferson la mot trong ba chiec thuyen do ho gui ra. Hai chiec con lai la American va John. Jefferson la chiec thu hai đuoc uy thac trong chien tranh. Sau khi Crowninshield qua đoi, Jefferson đuoc gia đinh ban nam 1815 va tro thanh tau đanh ca. Du thuyen đa dung cho muc đich nay trong nhieu nam. Thuyen nay thuoc ve thuyen truong John Crowninshield cua Marblehead, Massachusetts, va sau đo la Caleb Johnson cua Nahant, Massachusetts.


Chu thich Tham khao Brigham, Charles Pliny (1899). Glory of the American Yacht. C. Pliny Brigham. This first purely American yacht, named "Jefferson," was of twenty-two tons burden. After some use as a pleasure craft by its owner, the "Jefferson" in 1812 entered the service of privateering, making one successful voyage, when she carried a crew of thirty men.
Chautauquan (1894). The Chautauquan. John C. Stevens, who afterwards built the yacht America and who was the first commodore of the New York Yacht Club, was responsible for the next pleasure vessel, the famous little Diver, built in 1802.
Clark, Arthur Hamilton (1904). The History of Yachting, 1600-1815. G.P. Putnam's Sons. In the year 1801 the yacht Jefferson, 22 tons, was built at Salem, Massachusetts, by Christopher Turner, for George Crowninshield, of Salem..... She remained the property of the Crowninshields until 1815, when she was sold for a fishing vessel and finally broken up at Lynn. This little vessel is believed to have been the first yacht that sailed under the American flag.
Day, Thomas Fleming (1904). The Rudder. Fawcett Publications. The first American vessel designed for use as a yacht, of which any authentic record exists, was the "Jefferson," built at Salem in 1801 for George Crowninshield, Jr.
Essex Institute (1889). Essex Institute Historical Collections. Essex Institute Press. Captain George had built by Christopher Turner  of Salem, in 1801, a sloop which he christened the "Jefferson," and which he used as a yacht for many years. She was of twenty-two tons, was a good sailor and a privateer in 1812, the second vessel commissioned as a privateer.
Essex Institute (1917). Old Time Ships of Salem. Essex Institute. In 1801, fifteen years before the building of "Cleopatra's Barge," Captain George Crowninshield built a smaller yacht, a sloop of twenty-two tons, the "Jefferson," which is the first recorded American yacht
Kane, Joseph Nathan (1997). Famous First Facts. H.W. Wilson. ISBN 978-0-8242-0661-1. The first American yacht was the Jefferson, a 22-ton sloop that was constructed  in 1801 at Salem, MA, by Christopher Turner for Captain George Crowninshield. It was 35 feet 10 inches long and 12 feet 4 inches wide, and had a 6-foot depth. It was rigged first as a schooner, afterward as a sloop.
Nation Associates (1914). The Nation. Nation Associates. His first yacht, the Jefferson—the first American yacht of any sort—he used not only for pleasure.
New England Magazine (1895). The New England Magazine. New England Magazine Company. After a storm he delighted in filling his private yacht Jefferson, the first yacht ever built in this country, with extra men and stores, and then cruising in Massachusetts Bay to aid disabled vessels.
U.S. Government (1923). Bulletin. U.S. Government Printing Office.