Manuscripts
The "Esmeralda II" was the first motorboat to traverse the Marble and Grand Canyons and completed her run at Pierces Ferry, 1949, June 17
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Marston, Hudson, Taylor, Hudson and Robinson: crew of Esmeralda at end of run; Pierces Ferry, Lake Mead
Manuscripts
mssMarston papers V184/0145

Robinson examining the prop at Pierces Ferry after completion of run
Manuscripts
mssMarston papers V172/0074.01

Zoe Desloge and Marie Saalfrank at Pierces Ferry; end of 1947 traverse
Manuscripts
mssMarston papers V184/0085

Otis Marston at Pierces Ferry at end of 1949 motor traverse of the Grand Canyon
Manuscripts
mssMarston papers V162/0073

"Esmeralda II" in Mile 217 Rapid. First complete transit of Grand Canyon by a motorboat
Manuscripts
mssMarston papers V091/0038

Nevills four boats at Pierces Ferry at end of Grand Canyon traverse of 1947
Manuscripts
mssMarston papers V184/0076