This "Supplement to Genealogies in the Library of Congress" lists all genealogies in the Library of Congress that were catalogued between 1972 and 1976, showing acquisitions made by the Library in the five years since publication of the original two-volume Bibliography. Arranged alphabetically by family name, it adds several thousand works to the canon, clinching the Bibliography's position as the premier finding-aid in genealogy.

The Stephensons arrived at Charleston, South Carolina, from Scotland in 1773. Both William and James Stephenson and their two married sisters settled near Great Faols, South Carolina, in Chester County. .