All female survey crew - Minidoka Project, Idaho 1918.
U.S. Bureau of Reclamation
1918
Photo from the U.S. Bureau of Reclamation, of the U.S. Department of the Interior. <a rel="nofollow" class="external free" href="https://www.usbr.gov/history/archive.html">https://www.usbr.gov/history/archive.html</a>