Correspondence A
Correspondence Ba-Be
Correspondence Bi-Bz
Correspondence C-G
Correspondence Ha-Hd
Correspondence He-Hz
Correspondence I-L
Correspondence M-N-O
Correspondence P
Correspondence Q-R-S
Correspondence T-Z plus addenda
Mines and mining companies: A-Al
Mines and mining companies: Alturas Company; papers 1866-1885
Mines and mining companies: Alturas Company; papers 1886-1912
Mines and mining companies: Alturas Company; accounts, field notes, maps and reports
Mines and mining companies: Am-Az
Mines and mining companies: B
Mines and mining companies: C-D
Mines and mining companies: Ea-Et
Mines and mining companies: Eu-Ez
Mines and mining companies: F
Mines and mining companies: G
Mines and mining companies: H
Mines and mining companies: I
Mines and mining companies: J-K-L
Mines and mining companies: Lucky Gold Hill Mine
Mines and mining companies: M
Mines and mining companies: N-O
Mines and mining companies: Pa-Ph
Mines and mining companie panies: Pi-Pz
Mines and mining companies: Q-R
Mines and mining companies: Sa-Si
Mines and mining companies: Sl-Sz
Mines and mining companies: T-U-V
Mines and mining companies: W-X-Y-Z
Miscellany: Articles; broadsides; business cards; business papers: accounts, checks and receipts
Miscellany: Certificates; Chinese gambling tickets; clippings (newspaper); County Supervisor Association; diagrams; drawings; ephemera; forms (blank); German language items; insurance policies; Land Office circulars and rules
Miscellany: Legal papers: agreements, court cases, mining claims, and mining district laws
Miscellany: Maps; menus; mining miscellany; notes and drafts; Panama California Exposition; Panama Pacific International Exposition; Plumas County papers: election 1918, country property inventory, mileages 1911-1919, and receipts (1918)
Miscellany: Poetry; postcards; printed materials; stocks and bonds; surveying materials: "Altitudes" and "Road Distances"
Diaries: 1886-87; 1898-99; 1906; 1911-12, and photographs