John Frémont, who was in California anxiously awaiting the belligerent word. Frémont’s anxiety reflected both his personal ambition and his uneasy conscience. His ambition drove him to dream of conquering California for the United States; his conscience nagged him for having started the war already, without authorization from Washington. Frémont was one of the great enigmas of his generation. For ten years during the 1840s and 1850s he was as famous as anyone in America, a celebrity-hero whose star rose like a rocket in the West and flashed brilliantly from coast to coast.

