<a href="https://en.wikipedia.org/wiki/Robert_Menzies" id="mwpw" rel="mw:WikiLink" title="Robert Menzies">Robert Menzies</a>, who became Australia's longest-serving prime minister, is <a href="https://en.wikipedia.org/wiki/1939_United_Australia_Party_leadership_election" id="mwqA" rel="mw:WikiLink" title="1939 United Australia Party leadership election">elected</a> as leader of the <a href="https://en.wikipedia.org/wiki/United_Australia_Party" id="mwqQ" rel="mw:WikiLink" title="United Australia Party">United Australia Party</a> after the death of Prime Minister <a href="https://en.wikipedia.org/wiki/Joseph_Lyons" id="mwqg" rel="mw:WikiLink" title="Joseph Lyons">Joseph Lyons</a>.<sup about="#mwt44" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-6"}}' id="cite_ref-6" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_18#cite_note-6" id="mwqw" style="counter-reset: mw-Ref 6;"><span class="mw-reflink-text" id="mwrA">[6]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-6"><cite about="#mwt41" class="citation book cs1 cs1-prop-long-vol" id="CITEREFMartin1993">Martin, Allan (1993). <span class="id-lock-registration" id="mwBRg" title="Free registration required"><a class="external text" href="https://archive.org/details/robertmenzieslif0000mart" id="mwBRk" rel="mw:ExtLink nofollow"><i id="mwBRo">Robert Menzies: A Life</i></a></span>. Vol.<span id="mwBRs" typeof="mw:Entity"> </span>1 (1894–1943). Melbourne University Press. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBRw" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBR0" typeof="mw:Entity"> </span><a href="./Special:BookSources/0522844421" id="mwBR4" rel="mw:WikiLink" title="Special:BookSources/0522844421"><bdi id="mwBR8">0522844421</bdi></a>.</cite><span about="#mwt41" class="Z3988" id="mwBSA" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Robert+Menzies%3A+A+Life&amp;rft.pub=Melbourne+University+Press&amp;rft.date=1993&amp;rft.isbn=0522844421&amp;rft.aulast=Martin&amp;rft.aufirst=Allan&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Frobertmenzieslif0000mart&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+18"></span><link about="#mwt41" href="./Category:CS1:_long_volume_value" id="mwBSE" rel="mw:PageProp/Category"/></span>