Fritz is renowned for her skill in crafting biographies of historical figures, a testament to her keen eye for selecting compelling subjects. In her insightful work, Worlds of Childhood: The Art and Craft of Writing for Children (1990), she outlines her criteria for choosing individuals worthy of exploration. These include people leading dramatic and adventurous lives, those of personal interest to her, personalities that reveal layers upon investigation, well-documented lives, and figures frequently featured in history lessons.

The Double Life of Pocahontas is a striking example that adheres to Fritz’s criteria. The book invites readers to delve into the adventurous life of Pocahontas, offering insights into her complex personality. Although Pocahontas left no written records, Fritz's meticulous research draws from a rich tapestry of sources. This narrative not only engages readers with its vivid depiction of early American life but also serves as an educational tool in classrooms. It artfully blends storytelling with historical facts, providing a nuanced portrayal of a Native American girl whose life story contributes significantly to the understanding of Native American influences on American history.