There are more than six thousand genealogies among the twenty thousand books in the collection, many of them circulating.
If you cannot get to a genealogy collection or your library doesn’t have the book you want, ask if interlibrary loan (ILL) is available. The NGS Book Loan Collection, held by St. Louis (Missouri) County Library, offers interlibrary loan service to send books in the NGS collection to your local library, for your use. There are more than six thousand genealogies among the twenty thousand books in the collection, many of them circulating. This collection is open to everyone. If the book does not circulate, contact the library staff, they may be willing to copy specific information for your research needs.