This publication furnishes current information on no fewer than 147 lineage organizations, their officers, and other members. In this sense it is both an annual Who's Who among lineage society members and a guidebook for learning about the purpose of each organization and how to contact it. For each organization listed the author gives the name of the society, date of founding, requirements for membership, a mailing address and, where available, the phone number. In the majority of cases, Mr. Davenport also provides some historical background on the society, size of current membership, and an illustration of the society's insignia. The Who's Who section lists over three hundred prominent living members of lineage societies, along with their spouses, addresses and phone numbers, and as many as ten hereditary societies of membership.