* "The Leavenworth Papers" (1940): This book details the early history of Fort Leavenworth, Kansas, and its role in the westward expansion of the United States.
* "The Role of the Western Fur Trade in the Economic Development of the United States" (1943): As the title suggests, this book examines the impact of the fur trade on the American economy.
* "The Westward Movement" (1949): This is a comprehensive work that covers the historical period of westward expansion in the United States.
* "The American West: A History" (1962): This textbook, co-authored with William E. Foley, became a standard text for college courses on Western American history.
* "A History of the United States" (1963): Atkinson also co-authored this comprehensive history of the United States, which was designed for high school students.
* "The Great Plains" (1963): This book focuses on the history and development of the Great Plains region of the United States.
Atkinson was a prolific writer, and his work has been highly influential in shaping our understanding of the American West. He was known for his detailed research and his clear and engaging writing style.