This dissertation shows that the migration of mixed-race individuals from the Caribbean to Britain between 1750 and 1820 helped to harden British attitudes toward those of African descent. The children of wealthy, white fathers and both free and enslaved women of color, many left for Britain in order to escape the deficiencies and bigotry of West Indian society. This study traces the group's origin in the Caribbean, mainly Jamaica, to its voyage and arrival in Britain. It argues that the perceived threats of these migrants' financial bounty and potential to marry and reproduce in Britain helped to collapse previous racial distinctions in the metropole which had traditionally differentiated along class and status lines and paved the way for a more monolithic racial viewpoint in the nineteenth century.

This study makes three major contributions to the history of the British Atlantic. First, it provides a thorough examination of the West Indies' elite population of color, showing its connection to privileged white society in both the Caribbean and Britain. Those who moved to the metropole lend further proof to the agency and influence of such individuals in the Atlantic world. Second, it expands the notion of the British family at the turn of the nineteenth century. Through analyses of wills, inheritance disputes, and correspondence, this project reveals the regularity of British legal and personal interaction with relatives of color across the Atlantic, as well as with those who resettled in the metropole. Third, it allows for a material understanding of Atlantic racial ideologies. By connecting popular discussions in the abolition debate and the sentimental novel to biographical accounts of mixed-race migrants, British notions of racial difference are more strongly linked to social reality. Uncovering an entirely new cohort of British people of color and its members' lived experiences, this dissertation provides crucial insight into the tightening of British and Atlantic racial attitudes.