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

Vessel: Polly; flag: Great Britain; rig: Sloop; estimated standardized tonnage: 56.3. People recorded in connection with the voyage: Captain: Lace, Ambr; Investor: Lace, Ambr; Captain: Crosbie, John; Investor: Crosbie, John; Investor: Rowe, William; Investor: Trafford, William; Investor: Crosbie, William; Investor: Bean, Samuel; Captain: Washington, John; Investor: Washington, John; Captain: Powr, John; Investor: Powr, John. The voyage began at Liverpool on 9 October 1766. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Grenada, place unspecified. Recorded outcome: Voyage completed as intended.