The 1880 Greenback Party National Convention convened in Chicago on June 9, 1880, to select a presidential nominee for the Greenback Party in the United States presidential election of 1880.
James B. Weaver of Iowa was chosen, defeating Hendrick B. Wright of Pennsylvania, Benjamin F. Butler of Massachusetts, and Alexander Campbell of Illinois. Barzillai J. Chambers of Texas was chosen for vice president.
Source: US President - G Convention. Our Campaigns. (February 9, 2012).