I am working on cataloging some warehouse receipts from the 1940's. They are interesting because they show the barrel proof's of the whiskey in the barrels. Here are the distillery names and barrel proofs.
(1942)H E Pogue Distillery Co. - Maysville, Ky. 104 proof
(1943)Bernheim Distilling Co. - Louisville, Ky. 101 proof
(1947)Geo. T. Stagg Company - Frankfort, Ky. 105 proof
(1947) The Melvale Distilling Co. (formerly the Dowling Distillers, Inc) - Burgin, Ky. 101 proof
(1941) Dowling Bros. Distilling Co. - Bugin, Ky. 101 proof
(1943)Logansport Distilling Co., Inc. - Logansport, Pa. 101 proof
(1942)Logansport Distilling Co., Inc. - Logansport, Pa. 162 proof
(1942)Blue Ribbon Distilleries Co. - Carrolton, Ky. 103 proof
(1944)Fairfield Distillery - Bardstown, Ky. 101 proof
This shows that lower barrel proof was the rule for most of these whiskies. I am not sure why the one Logansport whiskey was so high in proof, but I suspect that it was a product made for blended whiskey.