guidelines are intended to assist libraries with preservation, conservation, and, when possible, restoration of their heavily used, fragile, and rare local history and local genealogical materials in printed, microform, machine-readable, audio, or video formats. Local history and local genealogical materials should include, but should not be limited to, city, county, and regional histories; biographical directories; cemetery and sextons' records; church records; family histories and genealogies; naturalization records; newspapers; census schedules; probate records; wills; tax lists; city and county directories; telephone directories; vital records; civil and criminal court records; land records; county atlases; county land ownership maps; fire insurance maps; and photographic prints and negatives.