The stories in Members of the Family are set in various locations across the American frontier and revolve around different characters who embody the pioneer spirit. Each story presents a unique aspect of Western life, from the challenges of frontier justice to the complexities of human relationships in a harsh and often unforgiving environment. The characters in these stories are often tough, resilient, and morally complex, reflecting the demands of life in the West. The themes explored in the collection include honor, loyalty, the clash between civilization and wilderness, and the personal codes that guide the actions of Westerners. Wister's writing is characterized by his deep understanding of the American West and his ability to bring its landscapes and people to life. The stories are rich in detail, capturing the vastness of the frontier and the distinct personalities of those who inhabit it.