American whaler General Jackson departed to sea in 1819

Of Nantucket, master Henry Cottle, departed on 14 May towards the South Atlantic and returned on 15 May 1820 with 25 barrels sperm and 534 whale. Brig.

Source
Catalogue of Nantucket Whalers and their voyages from 1815 to 1870. Hussey&Robinson, Nantucket, 1876.