Tom, It is sad that the only thing we have to go off of now is pictures, and not very good ones at that, to show Behr's works. There just isn't enough on him, and just my luck, probably wasted-away in the bottom of one of the local dumps is probably one of the greatest of all time, manuscripts written on the game .
Hacienda is so far-gone, and it is getting even worse since the addition of a ridiculous fairway bunker that existed, as well as soem shaping by a "new to the business" shaper that has made the ninth green complex look like Seth Raynor had desigened it.
Also, I can't forget to mention that the GREAT Award Winning Golf Architect, Theadore "Ted" Robinson has done MUCH work at the course.
Montebello GC which was Behr's only public course is a complete shadow of its former self, with only the original routing left. that work was had a steady flow of Award Winning Golf Architects too, the last being MacKenzie Specialists, Rainville and Bye, from just a couple of years ago.
Rancho Sante Fe has been further destroyed by Perry Dye.
There are more.