Very first paper (in French) by Castaing and Guinier on EPMA given in 1949 in at the July 4-8, 1949 "Conference on Electron Microscopy" This was the first international EM conference held following WW2
Moseley died in a WWI battle in Turkey in 1915. "In view of what he might still have accomplished (he was only 27 when he died), his death might well have been the most costly single death of the war to mankind generally," says Isaac Asimov (Biographical Encyclopedia of Science & Technology).