Jarrett was born in Shiraz, Iran,[1] during the Shah’s rule, to American parents James E. Bowman and Barbara T. Bowman. Her father, a pathologist and geneticist, ran a hospital for children in Shiraz in 1956 as part of a program in which American physicians and agricultural experts sought to help in the health and farming efforts of developing countries. When she was five years old, the family moved to London for a year, later moving to Chicago in 1963.[4]
Her parents are of African-American and European descent. On the television series Finding Your Roots, DNA testing indicated that Jarrett is of 49% European, 46% African, and 5% Native American descent. Among her European roots, she was found to have French and Scottish ancestry.[5] One of her maternal great-grandfathers, Robert Robinson Taylor, was the first accredited African-American architect, and the first African-American student enrolled at the Massachusetts Institute of Technology.[6] Jarrett's father once told her that her great-grandfather was Jewish.[7] Her maternal grandfather, Robert Rochon Taylor, was chairman of the Chicago Housing Authority in the 1940s.[8]
As a child, Jarrett spoke Persian, French, and English.[9]