The PBS series American Experience has a new episode about Freedom Summer that features a short segment, and apparently some film clips, on a little-known KD, Malva Heffner. She and her husband were ostracized and eventually driven from their town in Mississippi for having met one of the volunteers through their pastor.
I've recorded it but haven't seen it, but here's the transcript:
http://www.pbs.org/wgbh/americanexpe...er-transcript/