Local history collections range from a few hundred reference volumes to more than 112,000 catalogued or estimated items. The figures below show how libraries and history organizations measure photographs, newspapers, manuscripts, objects, volunteers, visitors, and research work. Dates and places matter: most collection figures come from the History Center of San Luis Obispo County’s 2020 annual report, while service figures come from later annual reporting or current local-history pages.
Contents
- Collection scale and cataloguing
- Archives, books, newspapers, and family records
- Objects and material culture
- Photographs and audiovisual history
- Local-history collections in public libraries
- Digital access and historical reach
- People, visitors, and research requests
Collection scale and cataloguing
The History Center of San Luis Obispo County reported four storage locations in its 2020 annual report, with more than 4,500 square feet of collection items. Its basic inventory estimate was more than 112,000 items, and its overall collections inventory total was 112,350. Those numbers describe the scale of the holdings, but they also show why cataloguing status is an important local-history statistic.
Only 66,293 collected items had been entered in the PastPerfect database in that report. The difference between the database count and the overall inventory total means the two figures should not be treated as interchangeable. One describes entered records; the other is an overall inventory figure. The report also estimated 24,714 archive items, 22,604 library items, 13,062 objects, and 51,970 photographs.
| Measure | Reported figure | Geography and period |
|---|---|---|
| Storage locations | 4 | San Luis Obispo County, 2020 report |
| Collection space | More than 4,500 sq. ft. | San Luis Obispo County, 2020 report |
| Basic inventory estimate | More than 112,000 items | San Luis Obispo County, 2020 report |
| Overall collections inventory | 112,350 items | San Luis Obispo County, 2020 report |
| Items entered in PastPerfect | 66,293 items | San Luis Obispo County, 2020 report |
These measures are useful together because they separate physical scale from database coverage. A repository can have a large estimated inventory while still having fewer records entered into its collection-management system. For readers researching a community, that distinction suggests that a catalogue search may represent only part of a collection.
Archives, books, newspapers, and family records
The 2020 San Luis Obispo County inventory divided its archival and library material into several forms. Family papers totalled 3,562 items, while government papers at the state, federal, and local levels totalled 9,788. Private ledgers and journals accounted for 2,787 items. Ephemera added 1,481 items, maps added 575, scrapbooks added 5,903, and oral-history materials totalled 618.
The library holdings included 4,333 books and 1,660 items in the Dallidet Family Library. Newspapers were a much larger category at 14,271 items, while periodicals totalled 2,340. These categories are not simply interchangeable types of reading material: newspapers and periodicals can provide recurring local coverage, books can consolidate historical interpretation, and family papers or ledgers can preserve records created by individuals and organizations.
Buffalo and Erie County Public Library provides another scale for comparison. Its Local History collection includes more than 4,000 books on Buffalo and Erie County history. The library has a complete collection of city directories from 1828 through the present day, more than 400 meticulously compiled scrapbook volumes, and scrapbooks spanning roughly 1890 to 1960. Its yearbook collection runs from the 1880s to the present.
The time ranges are as significant as the item counts. A collection with directories from 1828 through the present day supports repeated comparison across generations, while a scrapbook run from roughly 1890 to 1960 describes a more bounded period. The supplied Buffalo figures identify collection coverage and chronology; they do not establish that every item is digitized or available remotely.
Objects and material culture
Material culture records the physical life of a place. In the History Center of San Luis Obispo County’s 2020 annual report, houseware objects were the largest named object category at 3,210 items. Apparel objects totalled 2,132, agriculture objects 1,667, and military and weaponry objects 1,148.
Other categories were smaller but still document distinct parts of local life. Equipment objects totalled 827, artwork 718, cultural and Native American objects 692, and the Dallidet house collection 643. Toys totalled 581, furniture 443, tools 306, musical instruments and records 256, medical objects 245, buildings and architecture objects 100, and textiles 94.
The figures show why a local-history collection cannot be understood through books alone. Housewares, clothing, tools, furniture, and toys can describe domestic and working life through objects rather than narrative texts. Buildings and architecture objects form the smallest named category in this list, but the count still identifies a dedicated area of collecting.
The categories also caution against using one large total as a complete picture. The overall object estimate was 13,062, while the report separately listed many object classes. The category figures are best read as the report’s own inventory groupings, not as a new total calculated by adding selected lines.
Photographs and audiovisual history
Photographs were the largest broad collection estimate in the San Luis Obispo County report, at 51,970 items. Within the listed photographic and audiovisual categories, prints totalled 31,755, glass plate photographs 10,038, slides 6,509, negative photographs 3,465, and movies 183.
The categories illustrate different forms of visual evidence. Prints were the largest named photographic format, while glass plate photographs represented more than ten thousand items. Slides and negatives added other forms of image-making and preservation. Movies formed a much smaller count, but their presence extends the collection beyond still images.
The 2020 report’s total photographic estimate and its format-level counts should be kept distinct. The broad estimate was 51,970 photographs; the format figures identify selected categories within the collection. They are useful for describing composition, but the supplied figures do not specify whether every format was counted under the same inventory method.
Twin Falls Public Library’s Idaho Room provides a second local-history example. The room houses about 25,000 items and owns almost 15,000 historical photographs. Its Clarence E. Bisbee collection includes more than 2,400 original glass negatives, while the O.A. Gus Kelker collection includes more than 1,500 photographs.
Other Twin Falls image collections include the Perrine Bridge Construction collection, scanned from more than 4,000 slides; the Harald Gerber collection, with more than 2,000 photographs, slides, and negatives; and a General Historical Photograph Collection containing more than 5,000 photographs. These are collection descriptions from the Twin Falls Public Library local-history page, and the repeated “more than,” “almost,” and “about” wording signals that the figures are approximate or threshold counts rather than exact measurements.
Local-history collections in public libraries
Public libraries preserve local history at several different scales. Commerce Public Library’s Local History Room contains more than 500 volumes. Its Commerce Journal issues are available from 1901 to the present on microfilm. The library’s photographic walls cover images from the 1800s to 1965, its archive photographs date back to the mid-1800s, and its school and community history materials also date back to the 1800s.
The Commerce figures combine holdings, formats, and time coverage. More than 500 volumes describes collection size, while 1901 to the present describes the span of a newspaper series. “From the 1800s” describes historical reach without specifying a single starting year. These distinctions matter when comparing a room’s holdings with a digitized series or a photographic archive.
The Williams County Public Library annual report supplies activity measures rather than only holdings. In 2024, the library completed 369 local-history research requests and responded to 395 obituary requests. It added 1,437 obituaries to its index and entered 1,261 photographs into the Huffman Photographic Archive.
| Williams County Public Library activity | 2024 figure |
|---|---|
| Local-history research requests completed | 369 |
| Obituary requests answered | 395 |
| Obituaries added to the index | 1,437 |
| Photographs entered in the Huffman Photographic Archive | 1,261 |
These numbers represent work completed or added during 2024, not the total size of the library’s local-history holdings. They show that local history is an active service: staff answer questions, expand indexes, and add images to an archive alongside preserving older material.
Digital access and historical reach
The Library of Congress Local History and Genealogy Web Archive began in January 2023. The archive has added sites on a monthly basis and covers websites from local genealogical and historical societies across the entire United States. Most collection material is in English. The archive includes sites that link to newsletters, blogs, and name indexes.
Those facts describe a national web-archiving scope rather than a count of individual pages or organizations. The monthly addition schedule indicates ongoing growth, but the supplied information does not give a total number of archived sites. The inclusion of newsletters, blogs, and name indexes also shows that digital local history can consist of many linked formats rather than a single database.
Twin Falls illustrates a different form of digital boundary. Its local newspapers go back to 1904, while online newspaper access goes to 2018, according to the Twin Falls Public Library local-history page. The two dates should be read separately: the historical newspaper run begins in 1904, but the stated online access extends through 2018. The figures do not say that every issue from 1904 through 2018 is available online.
Digital availability therefore has at least two measurable dimensions: the historical span of the source and the endpoint of online access. A researcher may need to distinguish a physical collection’s earliest date from the portion that can be reached through an online service.
People, visitors, and research requests
Preservation and access depend on people as well as collections. The History Center of San Luis Obispo County listed 45 volunteers, 3 tour guides, 12 gardeners, 15 docents, and 12 interns in its 2020 annual report. It also listed 281 donors and 7 business partners.
The report recorded more than 80 attendees at its annual gala. Weekly walking tours used groups of 5 to 15 visitors. The attendance figure describes one event, while the walking-tour figure describes the group size used for a recurring activity; neither should be treated as an annual visitor total.
Taken together, the staffing and participation figures describe several kinds of support. Volunteers, docents, guides, gardeners, and interns contributed different kinds of work; donors and business partners represented organizational support; and tours and the gala measured specific public activities. The supplied report does not provide hours worked, budgets, or a combined headcount, so those measures should remain separate.
The Williams County figures add a service perspective from 2024. The library completed 369 local-history research requests and handled 395 obituary requests, while adding 1,437 obituary records and 1,261 photographs to its resources. These measures connect preservation with use: local-history institutions retain records, but they also answer questions and make new entries that can support later research.
For readers comparing repositories, the most useful question is not simply which institution has the largest number. It is what the number measures: estimated items, catalogued records, a format-specific collection, a date range, a completed request, or a single event. Local history statistics become more meaningful when the collection, geography, source label, and measurement period remain attached to every figure.