"The Federal and State Constitutions Colonial Charters, and Other Organic Laws of the States, Territories, and Colonies Now or Heretofore Forming the United States of America" compiled and edited by Newton Thorpe, Washington, DC : Government Printing Office, 1909.
"The Samuel Gompers Papers: The American Federation of Labor and the Great War, 1917-18". Book by Samuel Gompers, edited by Peter J. Albert and Grace Palladino, p. 348, 2006.