The following links may be useful.
Reed Library Special Collections at SUNY Fredonia (Fredonia, NY). The local history collection includes materials relating to Chautauqua and Cattaraugus Counties, especially U.S. census records (complete through 1840, then local only), NYS census for Chautauqua and Cattaraugus Counties, Senecat Indians and the Iroquois Census Project, county/local histories/directories, supervisor’s reports, family history records, newspapers. The archives of the Holland Land Company offer insights into the settlement and development of Western New York. Copying is available.
Dunkirk Historical Museum (Dunkirk, NY). Collections emphasize the history of Dunkirk; its schools, churches, government, business/industry, (especially the Brooks/ALCO locomotive works) and social organizations. These include family history materials, city directories, school yearbooks, local histories, diaries, photographs, and clipping files. Copying is available.
Darwin R. Barker Museum (Fredonia, NY). Collections include the Fredonia Censor (1821-1964), US and NYS census records for Chautauqua County from 1850-1925, index to deaths and marriages in the Censor, cemetery records, photographs, manuscripts, many New England genealogies and resources. The library of the Chautauqua County Genealogical Society is also located here. Copying is available.
Chautauqua County Historical Society (Westfield, NY). 2000-volume holdings include: Clayburne Sampson Collection, Elial Foote Papers, Gerald Todd Papers, diaries, family historis, Civil War Muster Rolls by towns, school records, maps, photographs, cemetery transcriptions, and miscellaneous files of county. Copying is available.
Chautauqua County Genealogical Society. Individual dues are $20 per calendar year, and include The Chautauqua Genealogist, published quarterly. Listings of researchers and current CCGS publications available on request – include SASE. The CCGS library is located at the Darwin R. Barker Museum.
Paterson Library (Westfield, NY). Collections include the Westfield Republican from 1855 and other newspapers, state/county/local histories, Holland Land Company records, DAR lineage books, clipping and reference files, family histories, surname and obiturary files, county cemetery records, county census records, maps and atlases. Copying is available.
Chautauqua Institution Archives at the Smith Memorial Library (Chautauqua, NY). Collections include various newspapers from 1876 to the present, scrapbooks, diaries, autograph books, oral history tapes, video and lecture tapes, photographs, dissertations, historic register of homes, and histories of other Chautauquas. Copying is available.
Chautauqua County Court House (Mayville, NY). Chautauqua County records from 1811 to date. County Clerk’s records include: land, naturalization, census (1825-1925), marriage (1908-1935), military discharge, DBA (business certificates), early court records and many unique maps. Finder’s guide available. The Surrogate Clerk maintains wills & probate records. Copying is available.