In the 1970s Mississippi Delta, Freedom Farm Cooperative (FFC) operated a pig bank. FFC received a donation of 40 pigs, 35 females and five males. Once a female became pregnant FFC gave it to a needy family with the obligation to return two babies from the pigs litter (mothers litter typically contained 18 to 30 piglets). In addition, the recipient of the female pig had to pay forward two pigs to another family in need. Some scholars say Dorothy Hite came up with the pig bank strategy based on the heifer international model. Some biographers argue that Hamer brought the program ideal to Height; Monica White says FFC started it in 1968.