Around 1914, August’s brother-in-law William Dealey attended some industrial efficiency seminars led by Frank and Lillian Gilbreth, watched their slow- motion films of typists, and reported what he saw to Dvorak. The brothers- in-law then devoted almost two decades to enormously detailed studies of typing, typists’ errors, previously designed keyboards, hand physiology and function, and the relative frequencies of letters, pairs of letters, and words in English. Finally, in 1932, they took what they had learned and designed a new keyboard.
Gilbreth Dealey Dvorak
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