Dan, I ordered some starter from a company that has about 8 or 9 varieties of starters. I got some 233 year old
San Francisco starter and some 900 year old Dutch starter. They have a 100 year old Alaska starter. Mine were 4oz.
in a small container. All were priced at $14.99 with instructions. They are on Amazon so with prime I got free
shipping. I didn't think that was too bad. The companies called, Living Dough. Here's their site so you can check
it out before you go to Amazon. After you mentioned your moms pancakes, I remembered my moms when I was a kid and
yeah, they had that tangy flavor. Years later she just bought the mix but it wasn't the same. Thanks for reminding
me.
https://livingdough.com/collections/sourdough-starters