Portal:Birth Control Federation of America, Plan Your Family For Health and Happiness (1940)
“ Mothers can give all their children better care and attention when the babies do not come too close together. The baby born two or three years after the birth of his brother or sister will be stronger and healthier than the baby born only one year after the birth of his brother or sister. Every baby can be wanted and planned for, so that he will have a good start in life and a welcome from his parents. ”
