WANTED: Records relating to 1915 SF Worlds Fair

[TinfoilPhono]

Anyone have any recordings that relate to the 1915 Panama Pacific International Exposition that are for sale?

I also looking for disc records about San Francisco:

-- "Hello Frisco, Hello"
-- "On San Francisco Bay"
-- "Grizzly Bear (dance)"

(I have the first two on 4-minute cylinders)