George Bird Grinnell
Grinnell, George Bird

(b. September 20, 1849 – d. April 11, 1938)

United States of America

Identified Uintacrinidae and collected Parulidae

Ferdinand Vandeveer Hayden
Hayden, Ferdinand Vandeveer

(b. September 07, 1829 – d. December 22, 1887)

United States of America

Identified Cardiidae and collected Poaceae

Othniel Charles Marsh
Marsh, Othniel Charles

(b. October 29, 1831 – d. March 18, 1899)

United States of America

Identified Caryocrinitidae and collected Caryocrinitidae