I. Ancestry and Youth, 1815-1846 -- II. The March to the Gila River, 1846 -- III. Across California to San Diego, 1846-1847 -- IV. The Vanishing Days of Mexican Rule, 1847 -- V. From Los Angeles to Donner Lake, 1847 -- VI. The Return to Sutter's FOrt, 1847-1848 -- VII. The Fateful Twenty-Fourth of January, 1848 -- VIII. The First Prospector, 1848 -- IX. Across the Sierra and Along the Humboldt, 1848 -- X. The End of the Trek, 1848 -- XI. Bigler's Later Years: 1848-1900.