American whaler John Adams departed to sea in 1818

Of Nantucket, master Peter Paddack, departed on 15 January 1818 towards the Pacific Ocean returning on 5 December 1820 with 788 barrels sperm and 862 barrels whale.

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