This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Shaker Flannel. Shaker is the name of a religious sect which emigrated to the United States in 1774 and colonized in different portions of various Eastern States. The people belonging to these societies live together in communities and possess large tracts of land, flour and woolen mills, etc., which they own in common. The flannels which they at one time manufactured, of mixed wool and cotton, were of superior quality, and hence took the name of the people who made it. Shaker flannel at the present time is a soft finished, slightly napped material, made of cotton warp and wool weft, in plain white or solid red. There are also varieties of all-wool and all-cotton flannels, called Shaker, on account of the soft finish and nappy surface.