more Charles Hartshorne interviews, definitely worth listening to
Three more very good interviews with Charles Hartshorne, one session is a Q & A session which is quite informative. You certainly might want to take the time to listen to these - each are about 50 minutes long, but it would be perfect if you are taking a long drive or doing some yard work (which is what I often do - listen to philosophy sometimes while mowing the lawn and so forth).
While the videos are "dated" the quality of ideas in play leaps out. Try giving one a listen!