Morse-Telegraphen-Lesebuch / F.O. Schönherr How to learn the morse code in thirty minutes and remember it / Ernest Nicholson Methods of operations research / Philip M. Morse and George E. Kimball new morse code manual / A.W. Eley Personal Papers in the Albert F.Simpson Historical Research Center / comp. and ed. by Richard E. Morse and Thomas C. Lobenstein Numbered USAF historical studies / prep. by the Albert F. Simpson Historical Research Center ; comp. and ed. by Richard E. Morse ... [et al.]
