This article uses underutilized individual-level data to examine who supported two third parties, the Grange and Greenbackers, in the final decades of the nineteenth century. We find that Greenbackers attracted individuals employed in non-agrarian occupations and others who were wealthier compared to major party voters. However, the Grange principally appealed to farmers, indicating third parties that are believed to have appealed to similar constituencies often appealed to different electoral groups. Both the Grange and the Greenbackers appealed to voters lacking strong ethnocultural identifications with either major party.