Bumping this thread for some old and new information.
First the old, below is the original post and photo submitted by Chuck Cowdery in August 2009.
Below the photo is the new info from Cowdery's comments in another thread a couple of months ago.
As archivist at the Filson Historical Society for the papers of E. H. Taylor, Jr., Mike Veach discovered that Taylor favored white corn, not yellow, and used 2 1/2 times the normal amount of barley malt -- about 25% malt. With 10% rye and the rest white corn, that was Taylor's mash bill. He distilled it to about 107 proof and put it in the barrel that way, aging it for about 8 years.
The picture below, courtesy of Mark Brown, is that recipe, last week, in the micro-distillery fermenters at Buffalo Trace. The first batch of the new Old Taylor has started its journey.
Some people seem to assume that the white corn bourbon BT put down for Taylor a couple of years ago will be Taylor when it comes of age. The evidence suggests otherwise. That was a one-off. They haven't made any more of it. It was, I think I heard, three barrels worth. It will be like the old fashioned sour mash, an authentic historic artifact but a one-off, not a regular product.