9 - 1 9 6 5 ) ▁and ▁Le ader ▁of ▁the ▁NS W ▁Liberal ▁Party ▁( 1 9 5 9 - 1 9 7 5 ) ▁ ▁B ▁▁▁ ▁Marcus ▁Bast ia an ▁, ▁business man , ▁power ▁bro ker ▁and ▁former ▁vice - pres ident ▁of ▁the ▁Victor ian ▁Division ▁of ▁the ▁Liberal ▁Party ▁ ▁C ory ▁Bernard i ▁, ▁former ▁Senator ▁for ▁South ▁Australia ▁and ▁founder ▁of ▁the ▁Australian ▁Conserv atives ▁ ▁Bron w yn ▁Bishop ▁, ▁Minister ▁for ▁Def ence ▁Indust ry , ▁Science ▁and ▁Person nel , ▁Minister ▁for ▁A ged ▁Care ▁in ▁the ▁Howard ▁Government , ▁former ▁Spe aker ▁of ▁the ▁House , ▁former ▁Senator ▁for ▁New ▁South ▁Wales ▁and ▁political ▁comment ator ▁for ▁Sky ▁News ▁Australia ▁ ▁Sir ▁Henry ▁Bol te , ▁GC M G , ▁longest - ser ving ▁Premier ▁of ▁Victoria ▁( 1 9 5 5 - 1 9 7 2 ), ▁Le ader ▁of ▁the ▁O pp osition ▁of ▁Victoria ▁( 1 9 5 3 - 1 9 5 5 ), ▁and ▁Le ader ▁of ▁the ▁Victor ian ▁Liberal ▁Party ▁( 1 9 5 3 - 1 9 7 2 ) ▁ ▁Sir ▁N ig el ▁Bow en , ▁AC , ▁K BE , ▁Q C , ▁inaug ural ▁Chief ▁Justice ▁of ▁Australia , ▁Minister ▁for ▁Foreign ▁Affairs ▁and ▁Att orney - General ▁in ▁the ▁Mc M ah on ▁Government , ▁and ▁Minister ▁for ▁Education ▁and ▁Science ▁in ▁the ▁G orton ▁Government ▁S lade ▁Bro ck man , ▁Senator ▁for ▁Western ▁Australia ▁