About Joseph Rock
Joseph Francis Charles Rock was an Austrian-American botanist, explorer, geographer, linguist, ethnographer and photographer. In 1911, the herbarium was transferred to the College of Hawaii (later the University of Hawaii) with Rock as its first curator and the Territory of Hawaii's first official botanist. This success led to further expeditions in southwest China, and in 1922 Rock first arrived in Lijiang in the northwest of Yunnan province, the center of the Nakhi (Naxi) people.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.