Trim removal on 68 Coronet

I'm getting ready for the journey into Paint Land. Does anyone know how to remove the quarter trim on a 68 Coronet 500? I'm assuming they're on push-in clips, but not sure and I didn't want to just start yanking... that seldom ends well.

The ones on my ‘70 Coronet were held on with tin nuts. Had to remove the rear interior panels to remove the nuts.