William H. Seward
The Republican Party had been founded in 1854, in reaction to the Kansas-Nebraska Act. Its anti-slavery stance was attractive to Seward, but he needed the Whig structure in New York to get re-elected. In September 1855, the New York Whig and Republican parties held simultaneous conventions that quickly merged into one. Seward was the most prominent figure to join the new party, and was spoken of as a possible presidential candidate in 1856. Weed, however, did not feel that the new party was strong enough on a national level to secure the presidency, and advised Seward to wait until 1860. When Seward's name was mentioned at the 1856 Republican National Convention, a huge ovation broke out. In the 1856 presidential election, the Democratic candidate, former Pennsylvania senator James Buchanan, defeated the Republican, former California senator John C. Frémont, and the Know Nothing candidate, former president Fillmore.
Republican Party of Wisconsin
The organizer of the meeting that gave birth to America's Republican Party was New York state native Alvan Earle Bovay, a lawyer and mathematics teacher at Ripon College. In 1852 Bovay traveled to New York City during the national Whig Party convention and met with old friend and "New York Tribune" editor Horace Greeley. Bovay suggested the name "Republican" for a new anti-slavery party that would replace the fading Whigs. He favored it because it was a simple word rather than a compound name like Free Soil or Free Democrat, that it could be used as either a noun or an adjective, that it would remind people of Thomas Jefferson's affiliation, and that it symbolized what he believed the new party should represent: "Res Publica," synonymous with "commonwealth". Bovay also believed that the name would attract immigrant voters that had recently fled monarchies.