The problem with me is I don't know the area in as much detail as you Brian so am relying on your geographical knowledge

From that wonderful website you showed us, daughters Hannah, Mary and wife Dinah were buried at the Idle Particular Baptist Chapel. Hannah (1819) and Mary (1821) abode Idle, Dinah (1836) Idle Green.
I have also just come across this, looking for a baptism for Dinah, John Tidswell son of Dinah Tidswell, Idle 19 Jul 1795 Bradford, St Peter (Bradford Cathedral). The same Dinah, possible, maybe?
So maybe as you say Brian, William was at Calverley