In late 1852, while in Washington, D.C., he provided some support and assistance to the agent responsible for rescuing Solomon Northup.
Pierre Boulez | Pierre Trudeau | Pierre-Auguste Renoir | Pierre Corneille | Jean-Pierre Rampal | Pierre Loti | Pierre | Pierre Teilhard de Chardin | Jean-Pierre Thiollet | Pierre Puvis de Chavannes | Pierre Cardin | Pierre Bourdieu | Pierre Amoyal | Pierre Huyghe | Pierre Bonnard | Pierre-Constant Budin | Pierre-Joseph Proudhon | Pierre Beaumarchais | Pierre Restany | Pierre Curie | Pierre Louÿs | Pierre Bayle | Marco Pierre White | Jeremy Soule | Jean-Pierre Ponnelle | Jean-Pierre Jeunet | Saint-Pierre, Martinique | Saint-Pierre | Pierre Monteux | Pierre Gassendi |
In this capacity he attracted attention by wearing at the court of Napoleon III a simple diplomatic uniform (for this he was rebuked by U.S. Secretary of State William L. Marcy, who had ordered American ministers to wear a plain civilian costume), and by joining with James Buchanan and Pierre Soulé, ministers to Great Britain and Spain respectively, in drawing up (October 1854) the famous Ostend Manifesto.