Try Wyeast-1450, deep dives on the inter webs sez that is where it originally came from. Probably has had some drift, but a good starting place vs. Chico.
This is a good point, most breweries that have a banked yeast (especially from 20+ years ago), I wouldn't be shocked if they are different than the yeast of the same name made today. I would assume white labs or wyeast does the same thing to prop up "Deschutes Ale Yeast" and WLP-005 for the homebrew market but you never know.
Another thing is, personally I wouldn't be shocked to see a yeast perform differently under commercial settings than homebrew settings. We see differences from tank to tank based on tank size and geometry. I wouldn't be shocked if it doesn't scale the same way and there's a big difference pitching 4 oz of yeast into 3 gallons versus 200 pounds of yeast into 3,000 gallons. I don't know enough about yeast to be able to explain why there are differences between the different tanks and batches, but just enough that I've observed it happening.
I also don't think yeast is as predictable as we give it credit for and it doesn't always do the same things.