Certificates, invitations, Reading family materials 1751-1778, and copybook of P. B. Reading 1823.
Diary 1842-43, New Helvetia account book 1845, passports 1842-43, and correspondence 1844-46.
California Battalion materials: notebooks 1846; muster rolls, 1846; receipts, 1847; settlement with troops, 1847; and correspondence, 1846-60.
California Battalion materials: account books 1846-47.
Land grant and ranch materials: abstract of title, maps, ranch journals of P. B. Reading 1854-56, and ranch diary of Mrs. P. B. Reading 1856-58.
Personal and political correspondence 1848-68.