The incident occurred in 1930 and 1931 in Lemon Grove in San Diego’s East County, where the local school board attempted to build a separate school for children of Mexican heritage. On March 30, 1931, the Superior Court of San Diego ruled that the local school board’s attempt to segregate 75 Mexican and Mexican American elementary school children was a violation of California state laws because ethnic Mexicans were considered white under the state’s Education Code.

Pictured Above: Segregated Students from Lemon Grove Grammar School