ジョン・モルガン
On 2 January 1930, the United States Coast and Geodetic Survey acquired "Corsair III" as a donation from J. P. Morgan, Jr. with the stipulation the ship be used for Coast and Geodetic Survey work. At the time of the donation J. P. Morgan, Jr. was having "Corsair IV" built with launch at Bath Iron Works on 10 April 1930.