Rural residents of the American South were among the last in the natio
n to complete the transition from high to low fertility. Recently crea
ted public use samples of the 1910 and 1940 U.S. censuses are used to
achieve two objectives. First, class and race differentials in marital
fertility among residents of the rural South are described during the
era of transition. Second, the change in rural fertility between 1910
and 1940 is examined to assess class-specific involvement in the rura
l transition. Significant variation in fertility by social class is ob
served for blacks in 1910 and 1940. By 1940, significant class differe
ntials emerge for whites, while those for blacks intensify. For both r
aces, farm laborers report the lowest fertility. The analysis of ferti
lity change between 1910 and 1940 reveals participation by all social
classes, with farm laborers experiencing the steepest decline.