The slave ship Polly completed the voyage after transporting enslaved Africans to Grenada.

Vessel: Polly; flag: U.S.A.; rig: Brig. People recorded in connection with the voyage: Captain: Elliott, Robert; Investor: Elliott, Robert; Investor: Mason. The voyage began at Rhode Island, port unspecified on 19 July 1773. Principal recorded place where captives were acquired: Africa, port unspecified (Other Africa). Principal recorded disembarkation place: Grenada, place unspecified. Estimated mortality during the crossing: 11.0%. Recorded outcome: Voyage completed as intended.