It's about time that someone had something nice to say about the Grangers--they were indeed political. Here in New England there are still a few active Granges, most notably, the "Guiding Star" grange in Greenfield, MA. It is the site of numerous events and contra dances, and home to the "Guiding Star Clog Morris" team.
Did your research mention their support of the "greenback dollar" platform shared by Bryant? or am I confusing them with someone else?
Peace & Love Lucius