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Abu Ghosh is a community of Israeli Arabs whose residents comprise a breeding isolate. The residents of the community can trace their ancestry back seven or eight generations to the founders of the population. Surnames are not used in Abu Ghosh. Rather, a person’s given name is followed by father’s first name, paternal grandfather’s first name, etc. Thus an individual seven generations removed from the founder is correctly identified by eight names. The aim of this paper is to consider methods of analyzing father’s first name to look for common ancestry in mates. In addition, mating patterns and levels of inbreeding within the population are discussed.