Lloyd Groff Copeman (1881-1956)

Lloyd Copeman Biographies

Biography PDF - Courtesy of the Detroit Athletic Club DAC News Magazine (July-August 2006 issue)

Biography PDF - provided by Michigan History Magazine

Biography 1 - The Inventive Career of Lloyd Copeman

Biography 2 - anonymous

Fifty Years an Inventor - Popular Mechanics, November, 1954

Article by Grandson - Kent L. Copeman

C. S. Mott Notes

A history of toasters

Listed in 10 most influential product designers of all time at designwanted.today

Inventor's Digest Article