The life and times of Henry, Lord Brougham. Written by himself. In Three Volumes. Vol. I. Second edition. William Blackwood and Sons, Edinburgh / London 1871; Textarchiv – Internet Archive
The History of Louisiana: Particularly of the Cession of that Colony to the United States of America. Carey & Lea, Philadelphia 1830; Textarchiv – Internet Archive
Soren Jacob Marius Peterson Fogdall: Danish-American diplomacy, 1776-1920. Chapter III: The Negotiation of Treaties and Settlement of Claims 1815–1853. In: University of Iowa Studies in the Social Science, 1922, Volume VIII, No. 2, S. 47 ff.; Textarchiv – Internet Archive
The Origin and Nature of the Representative and Federative Institutions of the United States. Textarchiv – Internet Archive
Arthur May Mowry: The Dorr war: or, The constitutional struggle in Rhode Island. Preston & Rounds, Providence RI, 1901; Textarchiv – Internet Archive
William Beach Lawrence: Elements of international law. 6th edition. With the last Corrections by the Author. Additional Notes and introductory Remarks, Containing a Notice of Mr. Wheaton’s Diplomatic Career and of the Antecedents of his Life. Little, Brown and company, Boston 1855; Textarchiv – Internet Archive
United States District Court, Southern District of New York. The Steamship Circassian. – The Steamship “Circassian” is an article from The American Law Register (1852–1891), Volume 21, 1. Mai 1873; Textarchiv – Internet Archive