▁with ▁Pear l ▁Gib bs , ▁Grace ▁B ards ley , ▁and ▁Bert ▁Gro ves . ▁Band ler ▁also ▁became ▁involved ▁with ▁the ▁Federal ▁Council ▁for ▁the ▁Ad van cement ▁of ▁Ab orig ines ▁and ▁Tor res ▁Stra it ▁Island ers ▁( F CA AT SI ), ▁which ▁was ▁formed ▁in ▁ 1 9 5 7 . ▁During ▁this ▁period , ▁Band ler ▁worked ▁with ▁her ▁ment ors ▁Pear l ▁Gib bs ▁and ▁Jess ie ▁Street . ▁As ▁general ▁secretary ▁of ▁F CA AT SI , ▁Band ler ▁led ▁the ▁campaign ▁for ▁a ▁constitution al ▁refer endum ▁to ▁remove ▁disc rimin atory ▁prov isions ▁from ▁the ▁Constitution ▁of ▁Australia . ▁The ▁campaign , ▁which ▁included ▁several ▁massive ▁pet itions ▁and ▁hundreds ▁of ▁public ▁meet ings ▁arranged ▁by ▁Band ler , ▁resulted ▁in ▁the ▁ 1 9 6 7 ▁refer endum ▁being ▁put ▁to ▁the ▁people ▁by ▁the ▁Hol t ▁government . ▁The ▁refer endum ▁succeeded ▁in ▁all ▁six ▁states , ▁attract ing ▁nearly ▁ 9 1 ▁percent ▁support ▁across ▁the ▁country . ▁ ▁In ▁ 1 9 7 5 , ▁Band ler ▁visited ▁Amb ry m ▁Island , ▁where ▁her ▁father ▁had ▁been ▁kid n apped ▁ 9 2 ▁years ▁before . ▁Through out ▁the ▁ 1 9 7 0 s , ▁Band ler ▁was ▁a ▁prominent ▁member ▁of ▁the ▁Women ' s ▁Elect oral ▁Lob by ▁in ▁New ▁South ▁Wales . ▁ ▁Writing ▁ ▁In ▁ 1 9 7 4 , ▁Band ler ▁started ▁working ▁on ▁four ▁books , ▁two ▁histor ies