Where is Linus Pauling buried?

[Fear_Itself]

On FindaGrave.com, there is a picture of a headstone with his name on it in the Oswego Pioneer Cemetery located in Lake Oswego, Oregon.

The entry for Pauling on Wikipedia is ambiguous, only going so far as to say there is a marker in the Oswego cemetery with his name on it.

However, on the website of the Oswego Heritage Council, they say he was never interred there:

Linus Pauling is not buried in the Oswego Pioneer Cemetery although there is a headstone there with his name on it. Pauling died in 1994 at his ranch in California. The family placed the headstone in the cemetery to honor his memory in the town where his relatives are buried and where he spent part of his childhood. Pauling’s grandfather was a German immigrant who came to Oregon to work in the Oswego Iron Furnace. Linus Pauling is the only winner of two unshared Nobel prizes: the prize for chemistry in 1954 and the Peace Prize in 1963.

So what’s the straight dope? Was he buried in secret? Cremated? Or was he rendered down to extract a small fortune in Vitamin C?