The "bushwhacker belles" of Western Missouri are known to have done very effective spying, carrying messages, smuggling medicines, pistol caps and other necessities to their brothers, sons, husbands and sweethearts among the confederate guerrillas. They are probably not the sort of spy network you had in mind, but they are an interesting part of the conflict in the area. They were variously hunted, banished, imprisoned, robbed, burned out, and even killed, but were never completely stopped. By the summer of 1864, many of the bushwhackers and their female support system moved to central Missouri.