Researchers on the trail of elusive ancestors sometimes turn to 18th- and early 19th-century newspapers after exhausting the first tier of genealogical sources (i.e., census records, wills, deeds, marriages, etc.). Generally speaking, early newspapers are not indexed, so they require investigators to comb through them, looking for the proverbial needle in a haystack. With his latest book, Robert Barnes has made one aspect of the aforementioned chore much easier. This remarkable book contains advertisements for missing relatives and lost friends from scores of newspapers published in Maryland, Pennsylvania, Delaware, and Virginia, as well as a few from New York and the District of Columbia. The newspaper issues begin in 1719 (when the "American Weekly Mercury" began publication in Philadelphia) and run into the early 1800s. The author's comprehensive bibliography, in the Introduction to the work, lists all the newspapers and other sources he examined in preparing the book. The volume references 1,325 notices that chronicle the appearance or disappearance of 1,566 persons.