A fact from Harold J. Conn appeared on Wikipedia's Main Page in the Did you know column on 27 January 2020 (check views). The text of the entry was as follows:
Did you know... that American bacteriologist Harold Conn was sometimes called "Dr. Stain"?
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I don't see any mention of Harold J. Conn, Herbert William Conn or Julia M. Joel in the book cited as "Men of Mark in Connecticut: Ideals of American Life Told in Biographies and Autobiographies of Eminent Living Americans" in Reference #3. Page 145 is shown here: https://archive.org/details/menofmarkinconne04osbo/page/144/mode/2up
