The Genealogy Reference Room at W. Dale Clark Main Library houses a non-circulating collection of more than 11,000 volumes (and growing) from all over the United States and many other countries, including most standard genealogy reference works and a large collection of family genealogies organized by surname. Family research enthusiasts will also find vital records indices, cemetery indices and transcriptions, census indices, county and town histories, and plat books, atlases, and gazetteers. All can be found in the OPL online catalog. Local materials are arranged by state and county, for easier browsing. In addition to books, the Genealogy Reference Room includes a substantial collection of genealogical and historical society periodicals from around the U.S., vertical surname files, a growing collection of local funeral leaflets, and an extensive card file of original obituaries from local Omaha newspapers from the early 20th century up to 2008.