Population data were derived from the following U.S. Bureau of the Census sources: for 1950, 1960, and 1970, U.S. Bureau of the Census, Statistical Abstract of the United States 1971, 92d edition (Washington, D.C.: U.S. GPO, 1971); for 1980: U.S. Bureau of the Census, Statistical Abstract of the United States 1981, l02d edition (Washington, D.C.: U.S. GPO, 1981); and for 1990: U.S. Bureau of the Census, Statistical Abstract of the United States 1993, 113th edition (Washington, D.C.: U.S. GPO, 1993).
In each population table and graph, the South is configured to include the eleven former Confederate states. The “non-South” includes the remaining 39 states and the District of Columbia. For the non-South, however, I derived the figures on whites, blacks, and “others” by calculating the difference between the number of persons in the South and the number of persons in the United State as a whole. Data on racial and ethnic groups other than blacks and whites are available in the bureau’s population reports, but are not reported here, nor are these data included in the population tables and graphs. However, “others” are included in the regional totals. The result of including “others” in the calculation of totals is that the proportion of whites and blacks will not equal 100 percent. Although, according to the data reported here, for the years 1950 and 1960, blacks and whites composed 100 percent of the South’s population; this is due in part to the fact that “others” made up less than 1 percent of the population in certain states, but mostly because of rounding. Finally, for 1950, 1960, and 1970, because the Census Bureau reports did not report state totals, the “South Total” was calculated by summing “other” for individual states, then adding this figure to the total number of whites and blacks for each state.