A bit more to add to my Gossett story, also a bit of a mystery. I had dinner with my pilot friend tonight and told him that I had posted the photo he sent me of Mort Gossett. He said he had pulled it off the 'net so that was my mistake, I though it was in an album of his. Anyway he said he had read up on William Gossett and doesn't think he and Mort are the same person, doesn't think Mort was military. But everyone around still thought Mort was Cooper. Mort was a sport skydiver. Then he said Mort's brother (first name unknown) was military, jumped out of 727s and was part of the real Air America story (I had to ask what that was, new to me). This would be second hand info, I don't think my friend every met the brother, or if he did Mort was still the guy everyone thought was Cooper.
So perhaps Mort and William Gossett are brothers. Maybe someone with the Ancestry website can check. A collaboration between the two? Mort worked the PNW corridor, whatever type of flying he was doing (firebombers likely, that's what my friend was doing at the time). I know all this sounds out there but there is a Mort Gossett, he had a brother, both were skydivers, and there is a William Gossett. Lastly perhaps the Cook fellow who is writing the book already knows all this...