Manuscripts
"JAX", the wizard hull owned by Jack Brennan and used on the Yampa and Green River in 1954. In the boat: Jack Brennan, Georgiana, Rena and Dr. Leslie White
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Jack Brennan's glass "WIZARD" boat in Grand Canyon with Don Hatch's Grand Canyon traverse
Manuscripts
mssMarston papers V175/0060

Jack Brennan in his glass outboard boat "Jax" on the jet of Vulcan Rapid
Manuscripts
mssMarston papers V085/0076
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"Harris-Brennan, Written by Jack Brennan - Upper Green, Yampa, Snake" - (The Harris-Brennan River Trips of 1952)
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

Running Lava Falls. The "Jax." Jack Brennan. The motor stopped during the run
Manuscripts
mssMarston papers V085/0077

