Anthropology is by definition about "others," but in this volume the phrase refers not to members of observed cultures, but to "significant others"—spouses, lovers, and others with whom anthropologists have deep relationships that are both personal and professional. The essays in this volume look at the roles of these spouses and partners of anthropologists over the late nineteenth and early twentieth centuries, especially their work as they accompanied the anthropologists in the field. Other relationships discussed include those between anthropologists and informants, mentors and students, cohorts and partners, and parents and children. The book closes with a look at gender roles in the field, demonstrated by the "marriage" in the late nineteenth century of the male Anthropological Society of Washington to the Women’s Anthropological Society of America. Revealing relationships that were simultaneously deeply personal and professionally important, these essays bring a new depth of insight to the history of anthropology as a social science and human endeavor.