First Yosemite Museum installations made. USNPS, 1921, pp. 72, 196, 202; Yosemite Park Naturalist, July, 1921; Hall, 1930.
1922
Yosemite Educational Department created. USNPS, 1922, pp. 113, 115; 1923, p. 20.
Yosemite Nature Notes first published (mimeographed through 1924, then printed). YNHA, 1925, p. 1.
1923
Hikers’ camps installed. USNPS, 1923, p. 54; 1924, pp. 37, 109; YNHA, 1923; Tresidder, D. B., p. 80; Adams, 1940, pp. 79-83; Russell, 1925.
Educational Department for all national parks created. Yosemite Park Naturalist; USNPS, 1923, p. 20; 1925, p. 10; 1926, p. 7; Burns, N. J., pp. 4-25.
1924
Hoof and mouth disease epidemic in Yosemite deer. USNPS, 1924, pp. 36, 108; 1925, pp. 6, 93; 1926, p. 14.
New administration center and village developed. USNPS, 1924, pp. 37, 108; 1925, p. 87.