Table 1—Classification of All Men Tested
From March 1941 Through December 1942
| AGCT Category | White | Black | ||
| Number | Percentage | Number | Percentage | |
| I | 273,626 | 6.6 | 1,580 | 0.4 |
| II | 1,154,700 | 28.0 | 14,891 | 3.4 |
| III | 1,327,164 | 32.1 | 54,302 | 12.3 |
| IV | 1,021,818 | 24.8 | 152,725 | 34.7 |
| V | 351,951 | 8.5 | 216,664 | 49.2 |
| Total | 4,129,259 | 100.0 | 440,162 | 100.0 |
Source: Tab A, Memo, G-3 for CofS, 10 Apr 43, AG 201.2 (19 Mar 43) (1).
Although there was considerable confusion on the subject, basically the Army's mental tests measured educational achievement rather than native intelligence, and in 1941 educational achievement in the United States hinged more on geography and economics than color. Though black and white recruits of comparable educations made comparable scores, the majority of Negroes came from areas of the country where inferior schools combined with economic and cultural poverty to put them at a significant disadvantage.[2-19] Many whites suffered similar disadvantages, and in absolute numbers more whites than blacks appeared in the lower categories. But whereas the Army could distribute the low-scoring white soldiers throughout the service so that an individual unit could easily absorb its few illiterate and semiliterate white men, the Army was obliged to assign an almost equal number of low-scoring Negroes to the relatively few black units where they could neither be absorbed nor easily trained. By the same token, segregation penalized the educated Negro whose talents were likely to be wasted when he was assigned to service units along with the unskilled.
Segregation further hindered the efficient use of black manpower by complicating the training of black soldiers. Although training facilities were at a premium, the Army was forced to provide its training and replacement centers with separate housing and other facilities. With an extremely limited number of Regular Army Negroes to draw from, the service had to create cadres for the new units and find officers to lead them. Black recruits destined for most arms and services were assured neither units, billets, nor training cadres. The Army's solution to the problem: lower the quotas for black inductees.
The use of quotas to regulate inductees by race was itself a source of tension between the Army and the Bureau of Selective Service.[2-20] Selective Service questioned the legality of the whole procedure whereby white and black selectees were delivered on the basis of separate calls; in many areas of the country draft boards were under attack for passing over large numbers of Negroes in order to fill these racial quotas. With the Navy depending exclusively on volunteers, Selective Service had by early 1943 a backlog of 300,000 black registrants who, according to their order numbers, should have been called to service but had been passed over. Selective Service wanted to eliminate the quota system altogether. At the very least it demanded that the Army accept more Negroes to adjust the racial imbalance of the draft rolls. The Army, determined to preserve the quota system, tried to satisfy the Selective Service's minimum demands, making room for more black inductees by forcing its arms and services to create more black units. Again the cost to efficiency was high.
Under the pressure of providing sufficient units for Negroes, the organization of units for the sake of guaranteeing vacancies became a major goal. In some cases, careful examination of the usefulness of the types of units provided was subordinated to the need to create units which could receive Negroes. As a result, several types of units with limited military value were formed in some branches for the specific purpose of absorbing otherwise unwanted Negroes. Conversely, certain types of units with legitimate and important military functions were filled with Negroes who could not function efficiently in the tasks to which they were assigned.[2-21]
Engineer Construction Troops in Liberia, July 1942