I am searching for 20 to 25 pieces of American Olean Stoneworks Tile,
Color ST01, 13"X13", which I installed in 2000.  Will pick up in NE,
but need shopped to RI otherwise.  Thanks for any help you can be.

HI Profscott,
I'll leave it to a Researcher to find sites for you, but maybe you can
find the tiles yourself.
You have probably already talked to American Olean if you know the
line has been discontinued.  But maybe their distributors still have
some old stock on hand.
Check A-O's website to see if they list distributors and contact them,
especially ones with several branches, since they may have a
centralized inventory system (I found one that has branches in several
states while looking at a very similar question.).
Maybe you can chat up the girl on the phone at A-O into telling you or
connecting you with someone who can tell you if the company has a
record of a distributor who might still have the tiles.  The company
will like that you want its product and should want to help you  - and
the distributor.
If this doesn't work, maybe there is a trade journal that you could
place an ad in.  Something else to search for on the web, the journal
or a website where you could place an offer for the tiles.

Good luck,
Myoarin

Check with a company called "Best Tile". They represent and stock A.O.
tile. It will be hard to find this, as obsolete tile is deeply
discounted until the stock has expired. Good Luck.