Theodore Parker, « "The American Idea:" speech at N.E. Anti-Slavery Convention, Boston », Bartleby.com, : « A democracy,—that is a government of all the people, by all the people, for all the people; of course, a government of the principles of eternal justice, the unchanging law of God; for shortness’ sake I will call it the idea of Freedom. »
Paul E. Teed, « A Brave Man's Child: Theodore Parker and the Memory of the American Revolution », Historical Journal of Massachusetts, (lire en ligne)
Official guidebook written by Pastore Luigi Santini, published by the Administration of the Cimitero agli Allori in 1981, « American Tombs in Florence's English Cemetery », sur florin.ms
