Manuscripts
Jack Rigg at head of Lake Mead. End of run by motor boats
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Jim Rigg posed for photo at head of Lake Mead at end of his first run with motor boats through Grand Canyon
Manuscripts
mssMarston papers V167/0094

Jack Rigg. Lee's Ferry at end of Glen Canyon run. Jack made the power run with the cruisers in 1952
Manuscripts
mssMarston papers V167/0090

John Harper; head of Lake Mead at end of 1952 motor traverse of the Grand Canyon
Manuscripts
mssMarston papers V158/0044

Tad Nichols at head of Lake Mead at end of 1952 motor traverse of the Grand Canyon
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