https://home.nps.gov/grca/learn/photosmultimedia/colter_phantom_photos.htm
Mary Colter's Phantom Ranch - Grand Canyon National Park (U.S. National Park Service)
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https://engines.egr.uh.edu/episode/3371
Mary Colter | The Engines of Our Ingenuity
Today, meet Mary Colter. The University of Houston presents this series about the machines that make our civilization run, and the people whose ingenuity...
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https://pioneeringwomen.bwaf.org/mary-elizabeth-jane-colter/
Mary Elizabeth Jane Colter | Pioneering Women of American Architecture
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