[Footnote 2-97: Ltr, SGS to Sen. Carl Hayden (Arizona), 12 Dec 41, AG 352 (12-12-41). See also Memo, ACofS, G-3, for CofS, 23 Oct 41, sub: Negro Officer Candidate Schools, G-3/43276.] Officer candidate training was the Army's first formal experiment with integration. Many blacks and whites lived together with a minimum of friction, and, except in flight school, all candidates trained together.[2-98] Yet in some schools the number of black officer candidates made racially separate rooms feasible, and Negroes were usually billeted and messed together. In other instances Army organizations were slow to integrate their officer training. The Women's Army Auxiliary Corps, for example, segregated black candidates until late 1942 when Judge Hastie brought the matter to McCloy's attention.[2-99] Nevertheless, the Army's experiment was far more important than its immediate results indicated. It proved that even in the face of considerable opposition the Army was willing to abandon its segregation policy when the issues of economy and efficiency were made sufficiently clear and compelling. [Footnote 2-98: Dollard and Young, "In the Armed Forces."] [Footnote 2-99: Memos, Hastie for ASW, 4 Nov 42 and 15 Dec 42; Ltr, Maj Gen A. D. Bruce, Cmdr, Tank Destroyer Center, to ASW, 31 Dec 42. All in ASW 291.2 NT (12-2-42).]