A painting is dated 1837, while Nantucket Signals gives flag use from 1838. It may also have continued under George Starbuck, whom Rosanoski does not connect with the Starbuck Family.
The Nantucket whaler Alpha operated from 1834 under Nathaniel Barney, later under William Hadwin in 1850 and George Starbuck in 1860, when she was sold to San Francisco. Agents included Hadwin & Barney, Nathanial Barney, and George & William Starbuck; other ownership entries are unclear.
Keep the explicit scope label independent; no alias or company identity is inferred.