No flag date is supplied.
Hero, called Hero II by Loughran, operated from Nantucket in 1816–1861 and was lost in the latter year. Owners included George Myrick, Joseph Mitchell, Joseph Starbuck and George Starbuck, with several gaps. Starbuck family members acted as agents for most recorded voyages.
Keep the explicit scope label independent; no alias or company identity is inferred.