Thomas Hill (1723-1820) and his brother, Henry, immigrated from England to St. Mary's County, Maryland in 1744, married Rebecca Miles in 1753, and moved in 1787 land on Cartright's Creek near Bardstown, Kentucky. Descendants and relatives lived in Maryland, Kentucky, Illinois, Iowa, Kansas, Colorado, Texas, California and elsewhere.

Charles Miles died early in 1842 in Montgomery County, Maryland. Charles was married to Elizabeth Beall, daughter of Lawson Beall. He was married secondly 24 December 1803 to Mary Layton and had children from both marriages.

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.

Previously published by Magna Carta, Baltimore. Published as a set by Genealogical Publishing with the two vols. of the Genealogies in the Library of Congress, and the two vols. of the Supplement. Set ISBN is 0806316691.