George Campbell Eickwort

* June 08, 1940 – July 11, 1994 †

United States

Halictidae

Collected Halictidae and identified Halictidae

Charles Duncan Michener
Charles Duncan Michener

* September 22, 1918 – November 01, 2015 †

United States

Apidae

Collected Apidae and identified Halictidae

Theodore B. Mitchell

* October 26, 1890 – February 10, 1983 †

Apidae

Collected Apidae and identified Megachilidae