Manuscripts
John Wetherill. Painted Rock Camp. Cliff Canyon near Forbidding Canyon. With Bernheimer party. Wetherill made a trip up into Glen Canyon from Lees Ferry in 1931, Jan. Patrick Flattum was his companion
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Flattum and Wetherill Glen Canyon trip. Two boats and John Wetherill
Manuscripts
mssMarston papers V173/0052
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Flattum-Wetherill trip
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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

Patrick Flattum. The name Henry also appears in some comment. Flattum and John Wetherill made a trip up into Glen Canyon from Lees Ferry in 1931, Jan
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Wetherill-Flattum inscription, Glen Canyon, 7 miles above Lees Ferry
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mssMarston papers V036/0138

Patrick M. Flattum. Flattum's name also appears as Henry. Flattum made trip in Glen Canyon in 1931, Jan
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mssMarston papers V156/0026

Pat Flattum and the Indian motor used in outboard trip in Glen Canyon
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mssMarston papers V033/0052