An Overview of the Phenomenon of Mixed Racial Isolates in the United States1

The subject of the paper is population groups of real or alleged tri‐racial origin—Indian, White, and Negro. There is a review of the emergence of such groups in American history, their conflicts with public authorities, and their recognition by researchers. The past importance of separate schools as a boundary maintenance mechanism is discussed, with emphasis on the declining persistence of such schools today. The role of the church as the typical remaining group institution is noted. Mention is made of the decreasing proportion of endogamous marriages in recent times. The essentially rural nature of these racial isolates is pointed out, and the general societal trend of rural depopulation is stated to be affecting their size and continued existence. A suggested list of research needs is offered.