The 1864 Democratic National Convention was held in Chicago, Illinois. George B. McClellan was nominated as and won the Democratic candidate for President of the United States, with George H. Pendleton as his Vice Presidential candidate. Nickname: The Windy City Motto: Urbs In Horto (Latin: City in a Garden), I Will Official website: http://egov. ... George McClellan George Brinton McClellan (December 3, 1826 – October 29, 1885) was a major general (and briefly the general-in-chief of the Union Army) during the American Civil War. ... [1] Resigned. ... George Hunt Pendleton (July 19, 1825–November 24, 1889) was a Representative and a Senator from Ohio. ...