Jimbo, Rose Hills is located in Whittier CA which is very close to Downey. It's one of the larger cemetery's in Southern Cal. and I figured the odds of Bob being buried there were good. The cemetery has a grave location search capability.
Go to www.rosehills.com, click on the 'grave location search' tab and type in "Thompson, Robert".
If you need any more help, just let me know. I have a digital camera and can take pictures for you if you like.

Bz

Great job Mark in Honoring one of our Fallen Brothers.