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- All Subjects: Grand Canyon (Ariz.)
- All Subjects: Kolb Bros.
- Creators: Kolb Bros.
- Creators: Evans, R. T.
- Creators: Finney, Finney
Letter to Carl T. Hayden regarding a water-power bill in effect for the Grand Canyon.
Black and white print of five women and one man riding mules on the Bright Angel Trail. A wooden sign next to the trail says, "Photo by Kolb Bros." Handwritten annotation, "Annie Goodenough on Bright Angel Trail."
Black and white postcard of Cataract Creek waterfalls. Circa 1930.
Black and white print with members of the Luhrs family. Typescript annotation, "July 17th, 1914. Going down Bright Angel Canyon of Arizona, Those on the mules, from bottom up: unknown, unknown, Ella Luhrs, Emma Luhrs, George H. N. Luhrs, unknown, Roger Hunt, George Luhrs Jr., Catherine Margarita 'Gretchen' (Mrs Geo H. N.) Luhrs standing beside George Luhrs Jr." Beside the trail, a sign displays, "Photo by Kolb Brothers."