▁to ▁an ▁English ▁" public " ▁school , ▁and ▁then ▁to ▁Oxford ▁where ▁he ▁read ▁class ics . ▁ ▁He ▁returned ▁to ▁the ▁United ▁States ▁where ▁he ▁received ▁fellow ships ▁at ▁the ▁University ▁of ▁Chicago ▁and ▁the ▁Brook ings ▁Institution . ▁ ▁Career ▁ ▁In ▁the ▁early ▁ 1 9 3 0 s ▁he ▁started ▁as ▁an ▁econom ist ▁at ▁the ▁U . S . ▁Department ▁of ▁Agricult ure . ▁ ▁State ▁Department ▁ ▁Be coming ▁more ▁involved ▁with ▁radical ▁politics , ▁he ▁joined ▁the ▁Social ist ▁Party . ▁Later ▁he ▁moved ▁to ▁the ▁State ▁Department , ▁working ▁in ▁the ▁trade ▁agre ements ▁division ▁and ▁negoti ating ▁trade ▁p act s ▁in ▁Turkey ▁and ▁Italy . ▁ ▁In ▁the ▁mid - 1 9 3 0 s , ▁he ▁became ▁acquaint ed ▁with ▁Ele an or ▁Nelson , ▁a ▁commun ist . ▁When ▁W ad le igh , ▁a ▁committed ▁social ist , ▁expressed ▁the ▁desire ▁to ▁act ▁against ▁growing ▁the ▁fasc ist ▁movement ▁in ▁Europe , ▁Nelson ▁put ▁him ▁in ▁touch ▁with ▁commun ists ▁in ▁Washington . ▁He ▁passed ▁along ▁documents ▁to ▁the ▁Soviet ▁Union ▁through ▁his ▁main ▁contact , ▁Wh itt aker ▁Ch amb ers , ▁at ▁the ▁Washington ▁Z oo . ▁ ▁The ▁defe ction ▁of ▁T rot sky ▁and ▁subsequent ▁p urg es ▁in ▁ 1 9 3 7 , ▁as ▁well ▁as ▁W ad le igh ' s ▁work ▁abroad , ▁resulted ▁in ▁inf re quent ▁contacts . ▁ ▁So on ▁after , ▁Ch amb ers ▁told ▁him ▁that