“War Service Records of Enlisted Men”. The Phi Delta Kappan6 (2): 16–18. (1923-01-01). JSTOR20257337.
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The first such machine built in accordance with Dvorak's one-handed layout was designed and constructed by Martin Tytell, also known a "Mr. Typewriter", of New York City. Kursh, Harry. Mechanix Illustrated, January 1951, pp. 74 et seq. See Meet Mr. Typewriter