Merchant networks, the guarantee system, and the British slave trade to Jamaica in the 1790s

Abstract

This paper contributes to the literature on payments for slave sales in the later phase of the British slave trade. It analyses the procedures used in the ‘guarantee’ system in transatlantic slaving whereby merchants in British ports forged close connections with African factors in British America and with British businessmen who guaranteed to pay the factors’ bills presented as payments for slave sales. This was an important institutional procedure in the history of the transatlantic slave trade. Though the ‘guarantee’ system has been explained in outline in previous studies, the case study presented here offers the most detailed appraisal of this system. Examining the British slave trade to Jamaica in 1790s, then the most significant disembarkation centre for enslaved people taken on British vessels, the paper explains the coordination necessary between groups of British merchants, their African factors in Jamaica and their British guarantee in order to secure payments for slave sales at a time of considerable volatility in the demand for slaves in Jamaica. The paper suggests that cooperation between merchants in different British ports in connection with the slave trade is as worthy of investigation as the rivalry between the British ports involved in the ‘Guinea’ traffic.