266 Russell R. Menard
age 50. The few women who did immigrate, furthermore, married late, in
their middle twenties on average, as most had to finish indenture terms
before they could find a husband, set up a household, and begin having
children. As a result, deaths exceeded births until near the end of the
seventeenth century, and the region long retained the male surplus and
low dependency ratios characteristic of frontier populations. Those immi-
grants did have some children, however, and they gradually transformed
the demographic regime. The native-born lived longer than their immi-
grant forebears, the sex ratio among them was balanced, and they married
much earlier. By the early eighteenth century, native-born adults were a
majority in the region, rapid growth through reproduction had begun,
and the age structure and sex ratio acquired a more settled character.
The decades around 1700 also witnessed the first, tentative steps to-
ward a gradual diversification of the Chesapeake Planters in coastal North
Carolina, the lower James River basin in Virginia, and on the lower
eastern shore, where soils yielded only low-grade
leaf.
They abandoned
tobacco almost entirely during periods of low prices after 1680. They
concentrated instead on naval stores, wood products, grains, livestock,
and subsistence farming, and they looked more to markets in the Carib-
bean than in England. Although planters made some tobacco when prices
were especially high, the region did not again become a major participant
in the tobacco trade. The pace of diversification increased in the eigh-
teenth century, especially after 1750, when rising food prices persuaded
planters in northern Maryland to abandon tobacco for wheat and planters
elsewhere to supplement their income from the traditional staple with
grains. Table 6.4, which describes exports from Maryland, Virginia, and
North Carolina on the eve of independence, understates the extent of
diversification because it does not include the growing coastal trade to
other regions in British North America nor the substantial overland busi-
ness with Philadelphia. Nevertheless, it suggests the extent and limits of
change. Tobacco remained the dominant export, accounting for about
two-thirds of the total value; Great Britain was still the dominant trading
partner, taking more than three-quarters of all exports. However, those
shares had dropped considerably, from perhaps 95 percent of the total in
1700,
in large part due to the rise of the grain trade to the sugar islands
and southern Europe.
The Chesapeake tobacco industry entered a period of renewed expansion
around 1720. At first, growth brought only slight encouragement. To-
bacco prices rose slowly (if at all) over the long term, and there were severe
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