On December 5, 1910, Chief Justice Shepard of the District Court of Appeals in Washington D.C., ruled that Isabel Wall, an eight-year-old girl, was prohibited from attending the local white public school because she was 1/16th Black. The court held that any child with an “admixture of colored blood” would be classified as such; thus, Isabel would be made to attend a separate school for Black children.
SOURCE: https://calendar.eji.org