Frederick J. Pack
...that Mormon abstinence from drinking caffeinated beverages goes back to a 1918 Improvement Era article by Frederick J. Pack?
...that <a class="mw-redirect" href="./Mormon" id="mwaw" rel="mw:WikiLink" title="Mormon">Mormon</a> abstinence from drinking caffeinated beverages goes back to a 1918 <i id="mwbA"><a href="./Improvement_Era" id="mwbQ" rel="mw:WikiLink" title="Improvement Era">Improvement Era</a></i> article by <b id="mwbg"><a href="./Frederick_J._Pack" id="mwbw" rel="mw:WikiLink" title="Frederick J. Pack">Frederick J. Pack</a></b>?