It's heartening that others are researching topics I frankly don't have time to. There's Ed Wray with his excellent work on hops. And there's another Ed (Edd Draper) looking into the history of yeast strains.
He's putting together a map of yeast strains. You can see it below.
View UK Brewery Yeast Strains in a larger map
If anyone has anything they can contribute, please comment.
My contribution was the Barclay Perkins yeast being used by the Tonbridge Brewery. Though admittedly I didn't realise it still existed until today.
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