Okies

The Okies were economic migrants from Oklahoma who traveled to California en masse in the Great Depression.

Quotes

 * "A car with three mattresses strapped to its roof meant a family of rich Okies; two mattresses meant mediocre wealth; and a lone mattress meant the Okies inside were dirt poor."
 * Kansas folklore, as quoted by Michael Wallis in Route 66: The Mother Road (1990).