Definition of "wadder"

The evidence shows that most of the meetings attended by the wadding manufacturers were meetings of the Canadian Quilting Manufacturers Association. The wadders had but a few meetings of their own […]

1956, Canada. Restrictive Trade Practices Commission, Report concerning the manufacture, distribution, and sale of quilted goods, quilting materials, and related products

Weavers, reelers, wadders and those working in the filature refused to move, and when forced, produced inferior quality goods or ran away at the earliest opportunity, partly because they were separated from their families […]

2011, Cultures of Knowledge: Technology in Chinese History, page 55