 Macune remained the head of the organization through the end of 1889, at which time it claimed a membership of 1.2 million.In September 1887, Macune was instrumental in launching the Farmers' Alliance Exchange of Texas, a flagship cooperative purchasing agency for the Alliance located in Dallas.The exchange attempted to boost farmers' incomes by purchasing their crop at higher prices through the removal of a layer of middlemen, as well as by reducing their costs through bulk purchases of supplies for its members.