When they fell in love amid the tumult of the 1905 Russian revolution, they believed they were destiny's match: William English Walling, a wealthy American journalist-activist from the Midwest, and Anna Strunsky, an aspiring novelist from San Francisco. Vowing to dedicate themselves to socialist ideals, they soon became celebrities who moved in an elite circle of writers, journalists, and reformers. Ultimately, both their marriage and their political commitment faltered, but not before they had participated in some of the most urgent social causes of their day.Drawing on archival sources and...