Manuscripts
"Geographical Explorations and Surveys West of the 100.th Meridian: Expedition of 1873... Wheeler": No. 14, Canyon of the Colorado River, near Mouth of San Juan River; No. 9, Cooley's Park, Sierra Blanca Range, Arizona; No. 12, Canyon de Chelle (photos by T.H. O'Sullivan)
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"Geographical Explorations and Surveys West of the 100.th Meridian: Expedition of 1872... Wheeler": No. 5, Grand Canyon, Colorado River, near Paria Creek, looking West; No. 6, Grand Canyon of the Colorado River, mouth of Kanab Wash, looking East (photos by T.H. O'Sullivan)
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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"Geographical Explorations and Surveys West of the 100.th Meridian: Expedition of 1871... Wheeler": No. 2, Black Canyon... Camp 7; No. 3, Black Canyon... Camp 8 (photos by T. H. O'Sullivan)
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Separation: George M. Wheeler, Timothy O'Sullivan
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Wheeler Expedition - James Horan, Timothy O'Sullivan, Doubleday, 1966
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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William Cooley - River Bed Case
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
Image not available
O'Sullivan, Timothy H
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers