To Dye Crimson
To two gallons of the juice of pokeberries, when they are quite ripe, add half a gallon of strong cider vinegar, to dye one pound of wool, which must be firs washed very clean with hard soap. The wool, when wrung dry, is to be put into the vinegar and pokeberry juice, and simmered in a copper kettle for one hour. Then take it out, let it drip a while, and spread it in the sun. The vessel must be free of grease of any kind.
Source: John Hammond Moore, ed., The Confederate Housewife (Columbia, SC: Summerhouse Press, 1997) as found in Confederate States Almanac, 1864