John Coster-Mullen
... that John Coster-Mullen discovered that the Little Boy was actually a girl?
... that <b id="mwBQw"><a href="./John_Coster-Mullen" id="mwBQ0" rel="mw:WikiLink" title="John Coster-Mullen">John Coster-Mullen</a></b> discovered that the <a href="./Little_Boy" id="mwBQ4" rel="mw:WikiLink" title="Little Boy">Little Boy</a> was actually a girl?