Andy Kilner
... that at the time of his appointment at Stockport County in 1999, footballer Andy Kilner was the youngest manager in the Football League?
... that at the time of his appointment at <a href="./Stockport_County_F.C." id="mw1A" rel="mw:WikiLink" title="Stockport County F.C.">Stockport County</a> in 1999, <a href="./Association_football" id="mw1Q" rel="mw:WikiLink" title="Association football">footballer</a> <b id="mw1g"><a href="./Andy_Kilner" id="mw1w" rel="mw:WikiLink" title="Andy Kilner">Andy Kilner</a></b> was the youngest manager in the <a href="./English_Football_League" id="mw2A" rel="mw:WikiLink" title="English Football League">Football League</a>?