The slave ship Martha departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Saint Kitts and Nevis.

Vessel: Martha; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 110.3. People recorded in connection with the voyage: Captain: Armitage, Robert; Investor: Armitage, Robert; Investor: Blundell, Bryan; Captain: Lady, Thos; Investor: Lady, Thos; Investor: Prichard, Owen. The voyage began at Liverpool on 17 May 1721. Principal recorded place where captives were acquired: Africa, port unspecified (Other Africa). Principal recorded disembarkation place: Newcastle (Nevis).