A small point. There's often interesting info buried between the line in facts one already has.
I notice that in the baptismal entry for Benjamin Crowther at Birstall Parish Church in 1795 (which Gary again provided)his dad William is listed as of 'Birstall' whereas as other entries on the same page involve fathers living at other places in the area. This makes it solid that our forebears were from the intersection of Birstall, Scholes, Cleckheaton, and Drub. I wonder if they supplemented their clothwork with a bit of small-scale farming - in which case they might be on a land registry somewhere.
I notice also that one of Benjamin's children - Hannah - was able to write her name on her marriage certificate (again provided to me by Gary, ages ago). The fact that she could write means of course that she was taught by someone. It's not really feasible that anyone outside the family would have done this. So it must have been Benjamin who taught her.
This tells us that Benjamin valued literacy. Maybe he tried to teach the others, but was only successful with her.