Operators
- Republic of China
- Chinese Nationalist Air Force – (Nationalist China, 1930s)
- Guatemala
- Guatemalan Air Force – (Until 1957)
- Panama
- Philippines (Commonwealth of the United States)
- Philippine A.A.C. – (Through the end of 1941)
- Spain
- Spanish Republican Air Force
- United States
- U.S. Army Air Corps
- Indonesia
Read more about this topic: Boeing P-26 Peashooter