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Ira Waddell Clokey

December 21, 1878 – January 13, 1950

United States

Asteraceae

Collected Asteraceae and identified Cyperaceae

James Downer Culbertson

October 12, 1879 – January 15, 1954

United States

Fabaceae

Collected Fabaceae

Amos Arthur Heller

March 21, 1867 – May 18, 1944

United States

Fabaceae

Collected Fabaceae and identified Fabaceae

John Herman Sandberg

1848 – 1917

Sweden; United States

Poaceae

Collected Poaceae and identified Viburnaceae