Isaac Bayley Balfour
Balfour, Isaac Bayley

(b. March 31, 1853 – d. November 30, 1922)

United Kingdom of Great Britain and Ireland

Identified Ericaceae and collected Asteraceae

Hoogland, Ruurd Dirk

(b. July 24, 1922 – d. November 18, 1994)

Kingdom of the Netherlands

Identified Dilleniaceae and collected Dilleniaceae

Joseph Dalton Hooker
Hooker, Joseph Dalton

(b. June 30, 1817 – d. December 10, 1911)

United Kingdom of Great Britain and Ireland

Identified Rubiaceae and collected Poaceae

Identified Urticaceae and collected Urticaceae

Norkett, Alan Henry

(b. 1915 – d. 1990)

Identified Fissidentaceae and collected Calymperaceae

Georg August Zenker
Zenker, Georg August

(b. June 11, 1855 – d. February 06, 1922)

Germany; German Empire

Identified Fabaceae and collected Rubiaceae