Figure 9.10: 1790 CENSUS PAGE
Figure 9.10: This page summarizes the tally of the first federal census, data that determined representation in Congress and proportional taxation of the states. Notice the five classifications: free white males sixteen or older, the same under sixteen, free white females, "all other free persons," and slaves. Separating white males at sixteen provided a rough measure of military strength. U.S. Census Bureau.