I get the dates for these pictures from two sources. One, is a photo series done by Galen Clark in 1910 that shows Vernal Falls. And in the picture below of Vernal Falls, a tree to the right of the falls is missing its top. So these pictures have to be between 1910 and when Camp Lost Arrow was still around. Camp Lost Arrow closed in 1915 when Yosemite Lodge opened.
Camp Lost Arrow, Yosemite, circa 1910-1915
Le Conte Memorial Lodge, Yosemite, circa 1910-1915
