Hannibal Hamlin (1809–1891), 4th cousin 5x removed
Hannibal Hamlin was the 15th Vice President of the United States (1861-1865), serving under President Abraham Lincoln during the American Civil War. He was the first Vice President from the Republican Party. Prior to his election in 1860, Hamlin served in the United States Senate, the House of Representatives, and, briefly, as the 26th Governor of Maine. From the very beginning of his service in Congress, he was prominent as an opponent of the extension of slavery. He was a conspicuous supporter of the Wilmot Proviso and spoke against the Compromise Measures of 1850. In 1861, Hamlin became Vice President under Abraham Lincoln, whom he did not meet until after the election. Maine was the first state in the Northeast to embrace the Republican Party, and the Lincoln-Hamlin ticket thus made sense in terms of regional balance. Hamlin was also a strong orator and a known opponent of slavery. In June 1864, although Lincoln was renominated, War Democrat Andrew Johnson of Tennessee was named to replace Hamlin as Lincoln’s running mate. Lincoln was seeking to broaden his base support and was also looking ahead to Southern Reconstruction, at which Johnson had proven himself adept as war governor of occupied Tennessee. Hamlin, by contrast, was an ally of Northern radicals (who would later impeach Johnson). Lincoln and Johnson were elected in November 1864, and Hamlin’s term expired on 4 Mar 1865, only 40 days before Lincoln’s assassination, so he narrowly missed becoming President of the United States.
The following biography, written by Hannibal Hamlin’s grandson, is available for download from my family history library: Hamlin, Charles Eugene. The Life and Times of Hannibal Hamlin (1899). It is also available new in a reprinted edition.