American whaler Sea Lion departed to sea in 1819

Of Nantucket, master Benjamin Folger, departed on  8th July towards Cape of Good Hope, South Africa and returned on 26 March 1821 with 1.087 barrel whale.

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