On May 17, 1876, Elizabeth Bacon Custer kissed her husband George goodbye and wished him good fortune in his efforts to fulfill the Army's orders to drive in the Native Americans who would not willingly relocate to a reservation. Adorned in a black taffeta dress and a velvet riding cap with a red peacock feather that matched George's red scarf, she watched the proud regiment ride off. It was a splendid picture. This new biography of Elizabeth...