Manuscripts
Nevills party at the cave above Rainbow Bridge: Nevills, Edna P. Heringer and Mr. and Mrs. Trask. Pres Walker was also a member of the party
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The Nevills party starting the climb down to the top of Rainbow Bridge
Manuscripts
mssMarston papers V032/0152

Rainbow Bridge where the major part of the 1940 Nevills party was
Manuscripts
mssMarston papers V032/0154

Pres Walker and others watching the landing of the Nevills river party. Jensen
Manuscripts
mssMarston papers V170/0015

Boatmen of the Nevills party which had completed the runs of the Salmon and Snake Rivers in 1946: Dock Marston, Norm Nevills, Pres Walker and Kent Frost
Manuscripts
mssMarston papers V184/0052
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Edna P. Heringer; Lucy Trask; Gladys Trask; Arthur C. Trask; Preston Walker; Norman Nevills; Lorin Bell; Kay Bell
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

Oarsmen of the Nevills party in the Hell's Canyon at Eagle Bar: Nevills, Walker, Frost and Marston
Manuscripts
mssMarston papers V184/0046.01