4 , ▁representing ▁a ▁very ▁large ▁rural ▁district ▁that ▁included ▁Cro ok , ▁D esch utes , ▁Jefferson , ▁K lam ath , ▁and ▁Lake ▁count ies . ▁ ▁He ▁served ▁in ▁that ▁body ▁from ▁ 1 9 2 5 ▁through ▁ 1 9 3 2 . ▁ ▁During ▁the ▁ 1 9 2 9 ▁legisl ative ▁session , ▁Hamilton ▁was ▁elected ▁Spe aker ▁of ▁the ▁House . ▁ ▁He ▁also ▁served ▁as ▁acting ▁Governor ▁of ▁Oregon ▁for ▁a ▁short ▁period ▁in ▁ 1 9 3 0 . ▁ ▁During ▁this ▁period , ▁Hamilton ▁was ▁also ▁active ▁in ▁the ▁local ▁Chamber ▁of ▁Com merce , ▁serving ▁as ▁president ▁of ▁the ▁B end ▁Chamber ▁of ▁Com merce ▁for ▁several ▁years . ▁ ▁Att orney ▁and ▁judge ▁▁ ▁In ▁ 1 9 3 0 , ▁Hamilton ▁moved ▁from ▁B end ▁to ▁Port land , ▁Oregon . ▁ ▁He ▁pract iced ▁law ▁in ▁Port land ▁for ▁eight ▁years . ▁ ▁He ▁also ▁served ▁as ▁president ▁of ▁the ▁Oregon ▁State ▁Chamber ▁of ▁Com merce ▁from ▁ 1 9 2 9 ▁to ▁ 1 9 3 2 , ▁and ▁was ▁president ▁of ▁the ▁Port land ▁Chamber ▁of ▁Com merce ▁from ▁ 1 9 3 5 ▁through ▁ 1 9 3 6 . ▁ ▁Hamilton ▁returned ▁to ▁B end ▁in ▁ 1 9 3 9 . ▁ ▁He ▁served ▁as ▁the ▁legal ▁ad visor ▁to ▁Governor ▁Charles ▁A . ▁Sp rag ue ▁during ▁ 1 9 4 1 ▁legisl ative ▁session . ▁ ▁Later ▁that ▁year , ▁Sp rag