Phil,
Great stuff, and #2 is a tough, tough hole at Durand.
Interestingly, the 5th hole at Cobb's Creek is very similar and Riviera's architect, George Thomas, had this to say about that;
“I always considered Hugh Wilson of Merion, Pennsylvania as one of the best of our golf architects, professional or amateur. He taught me many things at Merion and the Philadelphia Municipal (Cobb’s Creek) and when I was building my first California courses, he kindly advised me by letter when I wrote him concerning them.”