Abel Joel Grout
Grout, Abel Joel

(b. 1867 – d. March 27, 1947)

United States of America

Identified Brachytheciaceae and collected Amblystegiaceae

John Thomas Howell
Howell, John Thomas

(b. November 06, 1903 – d. May 07, 1994)

United States of America

Identified Cyperaceae and collected Asteraceae