Here is another document from the Filson Historical Society's archive for you to consider. It is from the the Eli Houston Brown III papers and was written by John Stone who was born in 1745 and came to Kentucky in 1790 from Virginia. It is undated but the correspondence of Stone ends in 1833 and the paper and such makes me think about 1800.
"Pennington Method Stillery
Take 12 gallons water into a tub then put in one bus.l corn meal and stir. Will go over three tubs in this manner Then begin at the first tub & put into it 10 or 12 gallons of boiling water in each then stir as above Then fill your still again with water to boil - 20 minutes after this put 4 gallons of cold water to each tub Then add one gallon of malt add to this half bus'l rye meal Stir these all together Will when the still boils add 10 gallons boiling water to each tub Stir as aforsaid Then let your tubs stand ab't 3 or 4 hours after which fill up your tubs with cold water Stir as aforsaid Then let your tubs stand until as warm as milk or rather cooler then yeast them"
Is this a "Bourbon" mash? It sounds that way to me. If so this kills the Craig myth probably by 10 years or so.