The Chautauqua County Historical Society provides access at the McClurg Museum to many materials related to local soldiers in the Civil War.
Additional resources to provide guidance in your research include:
The histories of various Chautauqua County Civil War units can be found by searching within Google Books.
Digitized versions of many newspapers in New York state can be accessed at NYS Historic Newspapers.
Civil War muster rolls for Chautauqua County are listed at Who Served in the Civil War?
You can search for soldiers in the National Park Service soldier database.
The National Archives maintains comprehensive veterans’ service records.
Primary sources on Civil War documents and material can be found through the Association of College and Research Libraries and the Chautauqua County Historical Society.
Civil War letters are available online through the Association of College and Research Libraries, Billy Yank and Johnny Rebel Letters, and William & Mary Libraries.
The National Archives feature a comprehensive collection of Civil War photographs.
To research specific individuals, visit People Search, FamilySearch, and the muster rolls of all New York state regiments at the New York State Military Museum & Veterans Research Center.
112th New York Volunteer Infantry links:
9th New York Volunteer Cavalry links:
49th New York Volunteer Infantry links:
72nd New York Volunteer Infantry links:
Friedsam Library at St. Bonaventure University
154th New York Volunteer Infantry links:
Friedsam Library at St. Bonaventure University
100th New York Volunteer Infantry links:
7th Company of 1st Battalion of New York Sharpshooters links:
15th Regiment of New York Volunteer Engineers links: