American History from German Archives: With Reference to the German Soldiers in the Revolution and Franklin's Visit to Germany

The Earl of Crawford's Ms. History in the Library of the American Philosophical Society

Defence of the Hessians

The American Philosophical Society, 1743-1903

Sources of History: A Paper Read Before the German-American Historical Society of New York and the Pionier-verein of Philadelphia

The Early French Members of the American Philosophical Society

Franklin and the University

The German Soldier in the Wars of the United States

Memoirs of the Earl of Crawford