At the 1892 St. Louis convention of the Southern and Northern Farmers' Alliances, Humphrey secured the vote of the Colored Farmers' Alliance for the creation of an independent third-party, helping override considerable opposition from the white Southern Alliance delegates. He packed the Colored Farmers' Alliance delegation with pro-third party white men in a series of proxy deals that were contrary to the organization's charter. The black delegates from Georgia Colored Farmers' Alliance, whose leadership opposed the formation of a third party, walked out of the convention in protest over this action. Only four black delegates were in attendance at the founding convention of the People's Party on the 4th of July in Omaha.