Garland,
I don't know if you are aware that the clubhouse position has changed since the 1936 aerial.
The clubhouse and parking lot were located between Marine Dr. and the Columbia River. They had a decorated tree in the lobby at Christmas time of 1971. It caught fire and the clubhouse burned to the ground. They were not allowed to rebuild because of PDX flight paths. The relocated clubhouse probably affected 1,9, and 10. The 18th green and the west side of the pro-shop probably in the same positions.