I haven't seen anything that looks much like it. I think your right. It looks like a Filson type design with a heavy canvas. Then again it might be felt or a really well worn leather. Possible considering the guys probable age.

I doubt your going to find a make, model and maker. Filson might have something close. You might have to have one custom made. I would be tempted to talk to Filson and see if they could come up with something similar. They could call it the "Elmer Kleb". Sort of a living memorial.

Of course it it is felt it might be a possible DIY job.

I could see myself wearing something like that. A light color and wide brims are good for southern folks.