Manuscripts
A single motored 18 foot aluminum hull running one of Grand Canyon's rapids. The power unit was 25HP
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18 foot aluminum hull with two 35HP outboards in one of Grand Canyon's rapids
Manuscripts
mssMarston papers V175/0144

18 foot boats under full power on Lake Mead with 25HP Evinrude motors. The "I"; Riffey, Harris and Belknap
Manuscripts
mssMarston papers V175/0032.01

18 foot boats under full power on Lake Mead with 25HP Evinrude motors. The "II"; Jack Couffer and Claude Nichols
Manuscripts
mssMarston papers V175/0032.02

The 18 foot Smithcraft "I" under full power from the 25HP Evinrude motor on Lake Mead with John Riffey, Bill Belknap and Don Harris
Manuscripts
mssMarston papers V175/0033.01

The 18 foot Smithcraft "I" under full power from the 25HP Evinrude motor on Lake Mead with John Riffey, Bill Belknap and Don Harris
Manuscripts
mssMarston papers V175/0033.02

Trail run of the "RATTLESNAKE" on Lake Mead. Power by two 25HP Evinrudes
Manuscripts
mssMarston papers V175/0077