Manuscripts
Dock Marston and Sportyak; Pierces Ferry after the transit of the Grand Canyon
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Dock Marston and Bill Belknap with Sportyak used in Cataract CAnyon after return from transit
Manuscripts
mssMarston papers V163/0133

Dock and Margaret Marston at Pierces Ferry at end of 1953 Grand Canyon traverse
Manuscripts
mssMarston papers V163/0022

Dock Marston and Norm Nevills at Pierces Ferry after 1947 traverse of Grand Canyon
Manuscripts
mssMarston papers V165/0115

Dock Marston at Pierces Ferry. End of 1947 run of Grand Canyon
Manuscripts
mssMarston papers P004/0140

Dock Marston at Pierces Ferry at end of 1947 run of Grand Canyon
Manuscripts
mssMarston papers V162/0043
