found: Robert Dale Owen, 1940:title page (Richard William Leopold)
found: Info. converted from 678, 2012-10-02(b. 1912)
found: Contemporary authors, volumes 1-4, first revision, 1967:(Richard William Leopold, b. Jan. 6, 1912)
found: OCLC, Jan. 25, 2019:(usage: Richard W. Leopold)
found: Northwestern University, Nov. 29, 2006:(Richard W. Leopold of Evanston, Ill., a prominent diplomatic historian whose teaching and scholarship guided students and colleagues during an illustrious career at Northwestern University, died of natural causes Nov. 23, 2006) - https://www.northwestern.edu/newscenter/stories/2006/11/leopold.html
