- Biographies of 19th century theologians, providing perspective on how and why these leaders were valued in the 19th century
- Books by and about women and the church
- Books about Native Americans and their religion
Series 2 offers material on the significant shifts in the religious identification of Americans and the growing interest and experimentation with non-Western religions. It presents a comprehensive picture of American life at the time with the rise of missionary activity and evangelical Christianity and the emergence of the historical critical method – the foundation for all 20th-century biblical scholarship.