I've just found a website for Bolton Progressive Threads. They are a group of 20 textile artists who frequently exhibit their work as a collective.
They will exhibiting at Gawthorpe Hall, Lancashire from March to October. Strangely enough I've just discovered that an ancestor of mine used to own Gawthorpe Hall. How's that for a coincidence!
Contact details are as follows;
To be added to their mailing list: email@example.com
For any other information: firstname.lastname@example.org
Hope you enjoy the webite. I certainly did!