el ' s ▁older ▁sister . ▁The ▁book ▁is ▁still ▁in ▁print ▁although ▁Ger vis ' s ▁draw ings ▁now ▁appear ▁only ▁in ▁the ▁P uff in ▁paper back ; ▁the ▁original s ▁are ▁held ▁by ▁the ▁Centre ▁for ▁the ▁Children ' s ▁Book . ▁She ▁is ▁also ▁known ▁for ▁her ▁other ▁book ▁illustr ations ▁such ▁as ▁The ▁But ter cup ▁Farm ▁Family , ▁The ▁P ole ▁Star ▁Family , ▁The ▁Sau cy ▁Jane ▁Family ▁and ▁The ▁Very ▁Big ▁Secret . ▁ ▁In ▁ 1 9 3 1 ▁Ger vis ▁became ▁a ▁founder ▁member ▁of ▁Sher bor ne ▁art ▁club ▁and ▁later ▁its ▁Chair man ▁and ▁President . ▁In ▁ 1 9 4 1 ▁she ▁was ▁asked ▁to ▁teach ▁the ▁art ▁at ▁Sher bor ne ▁School ▁as ▁the ▁art ▁master ▁was ▁ill ; ▁he ▁subsequently ▁died ▁and ▁by ▁ 1 9 4 1 ▁she ▁was ▁in ▁charge ▁of ▁the ▁art ▁department ▁where ▁she ▁remained ▁until ▁ 1 9 5 3 . ▁She ▁moved ▁to ▁a ▁similar ▁post ▁at ▁Lord ▁Dig by ' s ▁school ▁in ▁ 1 9 5 3 ▁until ▁she ▁retired ▁in ▁ 1 9 6 6 . ▁▁ ▁After ▁her ▁husband ▁Sh or ▁died ▁in ▁ 1 9 6 8 , ▁Ger vis ▁became ▁a ▁founder ▁member ▁of ▁the ▁Museum ▁at ▁Sher bor ne , ▁particip ating ▁on ▁its ▁Council ▁and ▁taking ▁a ▁supporting ▁role ▁for ▁twenty ▁years . ▁In ▁ 1 9 8 8 ▁when ▁ill ▁health ▁became ▁a ▁problem , ▁she ▁moved ▁to ▁Oxford ▁to ▁be ▁near ▁her