Manuscripts
Dock Marston gives the lecture at the Separation plaque
You might also be interested in

Jim Bailey, Harvey Butchart, Dock Marston at the replacing of the 1934 plaque at Separation Canyon 1971, Nov. 27
Manuscripts
mssMarston papers V097/0171

Dock Marston and Frankie Strathairn after 1934 plaque had been set and braced for hardening of adjesive at Separation Canyon
Manuscripts
mssMarston papers V097/0186

Dock Marston explaining the meanings of the two plaques at Separation Canyon during the History Workshop of Grand Canyon Expeditions, Inc
Manuscripts
mssMarston papers V097/0190

Crew at plaque at Separation Canyon. Sanderson; Harris; Riffey; Couffer; Marston; Nichols
Manuscripts
mssMarston papers V097/0194.01

Crew at plaque at Separation Canyon. Harris; Couffer; Riffey; Marston; Sanderson; Nichols
Manuscripts
mssMarston papers V097/0197.01
