Tim,
Amazing that I and many others have driven with 100 yds of that circle and never knew it. Did it in 2005 I think? We where on a vacation that took us to Woodland Washington and then Glacier. We visited Mt St Helen's the Spruce Goose and so forth I thought the circle outside the Evergreen building was Named for Jim Walker? Nice to hear from you.
Chuck
The circle in McMinnville
was the "Dalton Beebe" circle. Spelling could be wrong. I'm not sure if it was a Memorial Circle or just what the term was. It was a nice place to fly, despite the huge grove of oak trees on the north side and the museum to the east. There is some hope that there'll be a new circle there, sometime in the next few years. Fingers firmly crossed!
The only bad part was the traffic on weekends and weekdays, if you came/went direct to Portland via Newberg. I prefer to shoot down I-5 to the Brooks/Wheatland exit, then W. to SR 221, north to SR 18 and west to the Evergreen Aviation Museum. Very little traffic that way, vs. stop & go bs via Newberg.
Steve