After oliver hudson kelley toured the south in 1866, he and several other government clerks founded the a. national grange, to improve farmers' lives. b. colored farmers' alliance, which grew to include more than 1 million members. c. grand state alliance, to improve economic conditions for poor texas farmers. d. populist party, to provide farmers with greater democracy and voice in government.

Oliver Hudson Kelley organized the National Grange Movement. The
Grangers were inspired by the Mason organization providing a bonding and community space for farmers to socialize and learn from one another. Eventually the organizations became a space to voice grievances and address issues farmers were facing. This movement worked as an organization of farmers essentially working like a union. This organization brought together farming communities in an effort to create a system of collaboration and one voice for the farmer. As a political group they will eventually join with other farming organizations and create the Populist Party. 

The answer is d. depriving colonists of trial by jury.