“Mails of Navassa Island, The Original Overseas United States Possession, 1876-1898” – Ken Lawrence
“Steaming Mail: Introduction of the First High-Tech Postal Service” – John Laurence Busch
“Steaming Mail: Introduction of the First High-Tech Postal Service” – John Laurence Busch
“The British Colonial Post Office Controversy: A Letter from the Constitutional Origins of the American Revolution” – Anthony Gallagher
“The British Colonial Post Office Controversy: A Letter from the Constitutional Origins of the American Revolution” – Anthony Gallagher
“Early Railroads Carry the Mail” – James Milgram
“Early Railroads Carry the Mail” – James Milgram
“Postal History of the Issue of 1847” – Gordon Eubanks
“Postal History of the Issue of 1847” – Gordon Eubanks
