Manuscripts
The "Bert Loper" moored above lower unit rapid
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Bert Loper
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
Bert Loper taking empty boat through No. 2 rapid at mouth of Piute Creek
Manuscripts
mssMarston papers V127/0027
