Investigation of San Joaquin Valley Hoovervilles
· San Joaquin Valley, California, United States

Wikimedia Commons · Public domain (United States; copyright not renewed) · file Commissioned by the San Francisco News, Steinbeck personally interviewed families in impoverished Hoovervilles across the San Joaquin Valley, observations that informed The Grapes of Wrath. Coordinate is a representative point for the broad San Joaquin Valley area documented by the source.