The social organization of the family is a key link between macrolevel soci
al change and individual-level childbearing behavior. The family mode of or
ganization framework and life course perspective are used to develop hypoth
eses about these links. To test those hypotheses, the analysis uses a combi
nation of life history and neighborhood history measures designed explicitl
y for this purpose. Results from fully dynamic multilevel hazard models dem
onstrate both childhood and adult community contexts shape childbearing in
independent ways. The results implicate a variety of specific mechanisms li
nking social change to fertility behavior: cost-benefit analysis, ideationa
l diffusion, and long-term personality development. The results also show c
ontextual characteristics at multiple points in the life course may each ex
ert independent effects on individual outcomes.