Back when I was a line guy in the 80’s, most of the bodies I saw come through were in a Cherokee Six, but I remember one coming in in a 172. They were always in a bag, never a casket. The most bizarre one was one where either the pilot insisted that he needed his body bag back, or the funeral home picking him up wanted him in their bag, but they transferred him right out on the ramp. I can still see his gray hair blowing in the wind.