For those that find this kind of thing interesting, here's a pretty concise article discussing the history of Coos County Bent Grass, aka Cocoos.
Sept. 3, 1927 Coos Bay Times -
A second article noting a visit to Coos County by Mackenzie and Egan. There's a local legend that Mackenzie designed the 9 hole Sunset Bay course in town, a tough feat as the course only dates back to the 1960's.
July 28, 1930 Coos Bay Times -