Is Story of the Woman’s Party an historical account, a novel, or a political manifesto? What can this source reveal about historical practice? This article will explore the historiographic, epistemological, and methodological challenges the book poses as an historical source. It will examine three main points: first, the relation between activism and historical practice—that is, how activism informs the writing of history. Second, how such a source can be handled by historians, and what the idea of a critical reading entails. Third, what this work actually helps us understand about the politics of the period: What does it say about the suffrage movement in particular? What does it reveal about politics in general?