I found my answer to where WW1 Vet., Reinhardt "Ray" Emanuel PONSNESS is buried in Astoria, Oregon. His grave is at the Crestview Cemetery.
Crestview Cemetery if found by traveling south on Nehalem Hwy (Hwy 202), along Youngs River, and entering at Greenwood Cemetery. As you enter Greenwood, Crestview is a section above and to the right of the Greenwood Cemetery. Only the name Greenwood Cemetery is on the sign at the entrance, but you must enter here to get to the section for the Crestview Cemetery.
Crestview is a large oval shaped section and is a much newer cemetery than Greenwood. Both ceneteries are owned and operated by the same people. I found the owners on site and they were very helpful, even taking the time to show me where the PONSNESS gravestone was located.