Jack Ferguson
... that water polo player Jack Ferguson performed in a circus throughout Britain as a child?
... that <a href="./Water_polo" id="mwtw" rel="mw:WikiLink" title="Water polo">water polo</a> player <b id="mwuA"><a href="./Jack_Ferguson_(water_polo,_born_1930)" id="mwuQ" rel="mw:WikiLink" title="Jack Ferguson (water polo, born 1930)">Jack Ferguson</a></b> performed in a circus throughout Britain  as a child?