American whaler Factor departed to sea in 1817

Of Nantucket, master William Fitzgerald, departed on 8 October 1817 towards the Pacific Ocean and returned on 8 July 1819 with 420 barrels sperm and 1.183 barrels whale.

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