Photograph as originally submitted to
this page in the Historical Marker Database
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Photographer: Rev. Ronald Irick
Taken: December 2, 2017
Caption:
Photo Displayed on Marker | Additional Description: Hardhats were required for workers on the
canyon bottom, one of the first instances of
their use on a large scale. Hoover Dam workers
used hats with the tradename “hard boiled,”
so-called because they were manufactured
using steamed canvas and glue.
Submitted: December 8, 2017, by Rev. Ronald Irick of West Liberty, Ohio.
Database Locator Identification Number: p407406
File Size: 1.147 Megabytes
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