Chapman, Oscar Littleton Chapman as Ickes' successor recalls career in Denver. 1946 To open law offices in Denver and Washington D. C, after Jan.2O. 1952 Chapman region. Chapman Chapman p.5 Post Nov.l4, 1952 p.39 sees Colorado as great iafstrial, agricultural Post Nov.22, 1952 p.2 becomes undersecretary. Post Mr 22, 1946 p.5 will be aid to Krug. Post Mr 18, 1946 P.1