Is pastor Jon Courson a brother to Pamela Courson Morrison?

No, Pastor Jon Courson is not a brother to Pamela Courson Morrison. Pamela Courson was the long-time girlfriend of Jim Morrison, the lead singer of The Doors, and she passed away in 1974. Jon Courson is a Christian pastor and author, and there is no known familial relationship between him and Pamela Courson.