Based on his letters from Harlan Ellison, I believe Patrick attended the very first Clarion Science Fiction Writer’s Workshop in 1968. I visited the Clarion web site a couple of days ago and realized that his name was not included on the list of alumni. I wrote to them about it and a very kind person (also named Patrick) quickly added him to the roster. You’ll find him listed alphabetically by last name, just after Vonda McIntyre.
I’m the son of Patrick of Meadows.