* _American Independence: the Great Upheaval_ (1938)
* _Mainspring: the Story of Human Progress_ (1941)
* _The Education of a Son: Woodrow Wilson and the Future of Democracy_ (1950)
* _The Story of the Old Mission:_ Mission San Carlos Borromeo de Carmelo (1952)
* _Boys and Girls of Colonial Times_ (1954)
* _The Forgotten Diplomat: Herbert Hoover and the Far East_ (1963)
* _How It All Began: Origins of the Western World_ (1966)
* _I'll Meet You at the Top_ (1968)