Dr. Harold A. Widdison was a sociologist who taught at Northern Arizona University in Flagstaff for 30 years. In addition to his professional work and research he was very interested in documenting prehistoric rock art and traveled extensively to visit hundreds of sites. This collection consists of slides, photographs, maps, and other documentation of both well-known and more obscure rock art sites visited by Widdison, mostly in the American Southwest but also throughout Canada, Mexico, and Europe.
Charles Kelly (1889-1971) was an amateur archaeologist who developed a passion for petroglyphs and petrographs while working as a caretaker at Capitol Reef in Utah. He photographed and wrote about them for nearly twenty years.
Arizona Archives Online