Census records can be used to track and estimate professions related to textiles and clothing manufacture.
Ancestry Library Edition - The library edition of Ancestry provides access to historical US federal census, as well as many state census records through 1950.
familysearch.org - Setting up a free account on Family Search allows you to search their vast collection of digitized records including census records, family histories, including many in the textile and clothing trades, and town histories that document the rise and fall of textile industries in towns and cities.