"Contra Costa County (Calif.)" . . . . . . . . "Biography"@en . . . . "Diaries"@en . . . . . "Papers relating to California pioneers and to California history"@en . . "Notes"@en . . . . . "A few autobiographical sketches collected by Mrs. Wolfe; research notes; transcripts of letters, diaries, and articles; occassional correspondence with families of pioneers, etc."@en . . . . "Autobiographies"@en . . "Includes material relating to the following people - John Marsh, Kimball family, John Muir, George C. Yount, Harlan family, Bret Harte, Morgan family, Mendenhall family, Nobles family, Norton family, and others; and to the following places - Concord, Crockett, Mt. Diablo, Pacheco, San Ramon and adjacent valleys, Antioch, Nortonville, Lake County, etc."@en . . . "Also: notes on some California land grants, Franciscan missions, gold rush, etc."@en . "History"@en . . "Lake County (Calif.)" . . "California" . .