See Bleach Worker.
Various ancestors living in Blackrod worked at a bleachworks. No specific location for this can be found. However in the 1848 map there is a Bleach Ground (where cloth was left out to bleach in the elements) between Blackrod and the Print Works, to the west side of Horwich.

In the 1894 the site of the Print Works is now occupied by one or two Bleach Works. This is probably Horwich Vale which hosted Star Bleach Works, see Horwich Heritage (search for Star).

There were also bleachworks at Wallsuches (on the east side of Horwich).
There was also a Huyton Bleachworks at Adlington which is north of Blackrod, see Rivington Pike.