ans ky ▁and ▁David ▁Ben - G ur ion . ▁The ▁office ▁was ▁in ▁rooms ▁in ▁P ett ico at ▁Lane , ▁where ▁Mos he ▁Share tt ▁worked ▁part - time ▁transl ating ▁Y idd ish ▁into ▁English . ▁They ▁built ▁ ▁contacts ▁with ▁both ▁Labour ▁and ▁the ▁Independent ▁Labour ▁Party , ▁and ▁succeeded ▁in ▁becoming ▁affili ated ▁to ▁the ▁British ▁Labour ▁Party ▁in ▁ 1 9 2 0 ▁under ▁the ▁name ▁of ▁The ▁Jewish ▁Social ist ▁Labour ▁Party , ▁claim ing ▁membership ▁of ▁ 3 , 0 0 0 , ▁although ▁actual ▁membership ▁was ▁a ▁few ▁hundred . ▁One ▁issue ▁that ▁they ▁tried ▁to ▁influence ▁policy ▁on ▁was ▁the ▁northern ▁border ▁of ▁Palest ine ▁which ▁was ▁being ▁decided ▁at ▁the ▁San ▁Rem o ▁conference . ▁They ▁hoped ▁that ▁it ▁would ▁be ▁extended ▁as ▁far ▁as ▁the ▁Lit ani ▁River . ▁They ▁had ▁only ▁limited ▁success ▁in ▁influen cing ▁Labour ▁Party ▁Middle ▁East ▁policy ▁and ▁the ▁office ▁closed ▁in ▁March ▁ 1 9 2 1 . ▁However , ▁party ▁leader ▁R ams ay ▁Mac Donald ▁was ▁influenced ▁by ▁P Z , ▁who ▁would ▁publish ▁his ▁pam ph let ▁A ▁Social ist ▁in ▁Palest ine ▁( 1 9 2 2 ) ▁document ing ▁his ▁visit ▁to ▁Palest ine . ▁ ▁In ▁ 1 9 2 3 , ▁Le ah ▁L ' Est range ▁Mal one ▁became ▁the ▁organisation ' s ▁first ▁female ▁chair . ▁ ▁By ▁ 1 9 2 8 , ▁the ▁World ▁Union ▁of ▁Po ale ▁Z ion ▁claimed ▁to ▁have ▁