In fact, all Pueblo groups have a complex social history that involves times of peace and warfare. Modern pueblo groups maintain war societies, just as our nation maintains the National Guard. It is important not to exaggerate this to conclude that all Ancestral Puebloans were cannibals, or to say that there was a widespread political structure maintained or enforced by cannibalism. These incidents may have simply been the result of a marginal, excessively agressive, group or two. Oral histories for Puebloan peoples go back hundreds of years.
Historical accounts tend to merge with myths and legends.
Harold Courlander's The Fourth World of the Hopis is considered the classic work. Mark Bahti's Pueblo Stories and Storytellers Many new history books incorporate historical documentation and oral histories. Thank you very much for your interest.