In 1993, Comprehensive Genealogical Services (CGS) was founded by Dr. Vernon M. Herron of King of Prussia, PA and developed as a non-profit organization in the state of Pennsylvania. It was designed to assist individuals, families, and other non-profit organizations in research and development in slave genealogy, pedigree development, family histories, consultation on family reunions, program and organizational development for family associations, and family communiques. CGS gave research assistance to any individual, family, or ethnic group without regards to race or point of origin within the context of American Genealogy. However, special attention was given to Black Genealogy as the need was great due to a slave heritage, lost and unrecorded records, and a period of family disruption.
In PA, the sponsorship of CGS was by both the Shiloh Baptist Church of Philadelphia, PA and the Institute for Non-Traditional Ministries of Washington, D. C., which gave a 501 c3 tax-exempt status to the organization.
After Dr. Herron retired and returned to the state of North Carolina, Comprehensive Genealogical Services was organized at the Beatties Ford Road Public Library on 13 December 1997 and incorporated in North Carolina on 5 October 1999.