July 20, 1929
BY INVENTING the electric lamp Mr. Edison did vastly more than provide a new lamp. He removed an untold burden of toil from the backs of men and women for all time.
HERBERT HOOVER
Note: The President's statement was issued in his capacity as the Honorary Chairman of the Sponsoring Committee of the Edison Pioneers. The statement was requested by the magazine Electrical World for use in a special issue devoted to "Light's Golden Jubilee," marking the 50th anniversary of Thomas A. Edison's invention of the electric incandescent lamp.
Herbert Hoover, Statement for a Magazine Issue Commemorating "Light's Golden Jubilee." Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/212538