The Rochester Genealogical Society began in 1938 when several people at a meeting of the Rochester Historical Society formed an informal group to preserve their family heritage. The Rochester Genealogical Society (RGS) became an independent organization in 1977. Since that time, RGS has experienced steady growth and currently has over 200 members. Members research families in all regions of the world. RGS sponsors regular educational activities and encourages member-to-member support. Membership is comprised of people from all walks of life, who freely offer help or guidance to other members whenever asked. The Church Records Preservation Committee was formed to assist churches and archives with conservation of their non-replaceable records. The images were photographed or scanned and the end product presents the records as they appear in their original form and order.
Rochester Genealogical Society is a member of the Rochester Regional Library Council.