Navy pilots test their steadiness and muscular coordination in Corpus Christi, Texas.Photograph by the U.S. Navy

Navy pilots test their steadiness and muscular coordination in Corpus Christi, Texas.
Photograph by the U.S. Navy

The post office and general store in Castolon, Texas.Photograph by Luis Marden, National Geographic

The post office and general store in Castolon, Texas.
Photograph by Luis Marden, National Geographic

Men ride a weed-burning rail car in Texas, June 1941.Photograph by Luis Marden, National Geographic

Men ride a weed-burning rail car in Texas, June 1941.
Photograph by Luis Marden, National Geographic

A girl wears a novelty braided Texas straw hat, October 1939.Photograph by Luis Marden, National Geographic

A girl wears a novelty braided Texas straw hat, October 1939.
Photograph by Luis Marden, National Geographic

A cowgirl puts a nickel in an El Paso parking meter to hitch her pony, October 1939.Photograph by Luis Marden, National Geographic

A cowgirl puts a nickel in an El Paso parking meter to hitch her pony, October 1939.
Photograph by Luis Marden, National Geographic