Henry Arthur Ballou

* July 23, 1872 – 1937 †

entomologist

entomologist

Wikidata iD http://www.wikidata.org/entity/Q109856372

Has collected with:

Joseph Rock

* January 13, 1884 – December 05, 1962 †

Austria; United States

Collected Ericaceae and identified Parmeliaceae

49,995 specimens claimed