I have two names to add to your list.
Leon Hurvitz, scholar of Japanese and Chinese Buddhism, who held a
position at the University of Washington and then moved to the
University of British Columbia in 1972. Hurvitz was a scholar of
Latin and Greek before the war, but was assigned to learn
Japanese. Because he was a student of classical languages, he
started to study classical Japanese on his own while serving in
American Navy intelligence. He always said that classical
Japanese was the most beautiful language he had ever encountered
after classical Greek. After the war, however, his research
interest switched to the transmission of Buddhism across East Asia
and he learned Sanskrit, Pali, classical Chinese, and Tibetan to
pursue that topic. He is best known as a scholar of Chinese
Buddhism, thanks to his translation of the Lotus Sutra according
to the Chinese version of Kumarajiva (Columbia UP, 1976), but his
research was based on an exhaustive knowledge of modern Japanese
scholarship on Buddhism, and he taught classical Japanese at UBC
for his whole career there.
John Howes, another scholar at UBC who served in the American
occupation force in Japan and went on to become a historian of
modern Japan. See tribute to him on his retirement from UBC,
http://www.asia.ubc.ca/people1/john-howes/ , which does not
however mention his military service.
Sonja Arntzen