Up the Path was illustrated as a full-page halftone with printed ornamental Art-Nouveau frame border in the August, 1914 issue of the journal Camera Craft.  (San Francisco: p. 422)

Possibly depicting Whitney’s wife and son, who also appears in the genre photograph on this site titled The Little Gardener, (1908) this vintage photograph circa 1905-1915 is printed on rough gelatin silver paper.