John Barker
... that English diplomat John Barker introduced vaccination to the Middle East?
...  that English diplomat <b id="mwGG0"><a href="./John_Barker_(diplomat)" id="mwGG4" rel="mw:WikiLink" title="John Barker (diplomat)">John Barker</a></b>  introduced <a href="./Vaccination" id="mwGG8" rel="mw:WikiLink" title="Vaccination">vaccination</a>  to the <a href="./Middle_East" id="mwGHA" rel="mw:WikiLink" title="Middle East">Middle East</a>?