I will take this in order, too.
If another "expert" tries to answer this, please feel free to tell he/she that you requested me if you wish.
There was a Dan Ferguson living in Oregon in 2012.
When did your Mr Ferguson die?
Or how old was he you last heard?
Jeanette, Did you see my questions about Dan Ferguson?
In case you did not, here they are again -
I would rather not start on the others until I hear back from you on this one.
I might have questions on the others and I do not want there to be confusion about which item we are talking about. I've had that happen before.
No hurry on this one. I assume you are waiting to hear back from your friends.
Obviously, work by a listed artist is more valuable.