Buffalo Bird Woman, a Hidatsa Indian born about 1839, was an expert gardener. Following centuries-old methods, she and the women of her family raised huge crops of corn, squash, beans, and sunflowers on the rich bottomlands of the Missouri River in what is now North Dakota. When she was young, her fields were near Like-a-fishhook, the earth-lodge village that the Hidatsa shared with the Mandan and Arikara. When she grew older, the families of the three tribes moved to individual allotments on...