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.

Richard Bradford (ca. 1640's) emigrated from England to Virginia in the early 1650's, settling in Charles City County. By 1661 he had married Frances Taylor and they had at least three sons. Their grandson, Philemon Bradford (b. ca. 1700) was born in Virginia. By 1744 Philemon had moved to North Carolina. He may have married twice and fathered seven children. His son, John (1751-1827) married Judith Mann and they had ten children. Descendants now live throughout the United States.