- Birth rates
- Distribution of births (e.g., by season, locality, race, sex, occupation)
- Incidence of stillbirths and multiple births
- Age of parents at birth of first child
- Spacing of children; number of children per completed family; etc.
- Childbirth 844
- Incidence of illegitimacy 848
Outline of Cultural Materials. George P. Murdock, et al., eds. New Haven, Conn. Human Relations Area Files, Inc. 1961. xxv, 164 p.