Henri Mercier

Édouard-Henri Mercier (1816–1886) was born in Baltimore, where his father served as French consul, but grew up and trained in Europe. He began diplomatic work as an unpaid attaché in Mexico and served in Madrid, Lisbon, and St Petersburg before becoming minister at Dresden in 1852 and Athens in 1854. His friendship with Édouard Thouvenel, later Napoleon III’s foreign minister, gave him an unusually direct channel to Paris. After a posting in Stockholm, he sailed for the United States in June 1860. ¹

Mercier’s American mission became entangled with the Civil War. In April 1862 he visited Richmond; a surviving note from Seward arranged for him to report what he had seen and discussed directly to Lincoln. His contacts across the lines did not make him an accepted mediator. On 3 February 1863 he delivered a French proposal for discussions between Union and Confederate commissioners on neutral ground. Seward rejected it, arguing that negotiations on that basis would compromise the Union’s constitutional authority and encourage disunion. ^{2, 3}

His judgments were shaped partly by friendships with Southern sympathizers, including the banker William Corcoran, whose Washington house he occupied after a fire destroyed his Georgetown residence. Historian Daniel B. Carroll’s study of Mercier’s dispatches distinguishes his stated opposition to slavery from his hostility to rapid emancipation. Mercier feared racial violence and economic disruption, and reacted angrily to Lincoln’s preliminary Emancipation Proclamation. Those views limited his understanding of the change in the war’s purpose and of the appeal emancipation could have in Europe. ⁴

Commercial and consular disputes continued alongside the larger political conflict. In May 1862 Mercier raised Lyon manufacturers’ objections to American duties on French silk, prompting Treasury Secretary Salmon P. Chase to send the matter to the House Ways and Means Committee. That October he proposed rules for determining which French residents remained French nationals and should therefore be exempt from American military service. His draft sought a common understanding with federal authorities, including treatment of immigrants who had declared an intention to naturalize but had not completed the process. ^{5, 6}

Mercier also cultivated direct contact with the president: on 26 April 1862 he invited Lincoln aboard the French dispatch vessel Gassendi at the Washington Navy Yard. He sought reassignment to Spain in 1863. His loyalty to the imperial regime ultimately cost him his diplomatic career when it fell in 1870. ^{7, 8, 1}