Ah yes, I see that now. I had looked at Volume I of the Kildwick PRs long ago, as they are available on archive.org, but now that things are coming into focus I see that I would need to look at Volume II and that's what Family Relatives has.
There's another angle, and that is the Sutton Baptists which may be exactly where I should be looking. I finally found the death of Mary Ann's father-in-law James Berry there as well as a lot of comings and goings of his wife and daughters. Mary Ann's husband Thomas Berry was active in the Baptist chapel as well, but I think I never convinced myself that the Baptist affiliation traveled up the generations to Mary Ann's own father. I need to look again.
Josie Walsh's Craven Indexes contain her transcription of Sutton Baptist Chapel Births 1764-1837. The rest of the children baptized by Thomas and Priscilla don't have names that seem to jibe with my family, so I think maybe I can eliminate that John Laycock.
LAYCOCK John Thomas & Priscilla 3.6.1790
LAYCOCK Judith Thomas & Priscilla 18.2.1792
LAYCOCK Priscilla Thomas & Priscilla 28.5.1796
LAYCOCK Priscilla Thomas & Priscilla 31.3.1798
LAYCOCK Thomas Thomas & Priscilla 16.2.1789
LAYCOCK Joseph Thomas & Priscilla 3.6.1790
LAYCOCK Benjamin Thomas & Priscilla 18.1.1794
LAYCOCK Moses Thomas & Priscilla 30.3.1801
LAYCOCK Sophia Sarah 10.12.1826
LAYCOCK Henry James & Mary 8.6.1810
LAYCOCK Mary James & Ann 4.3.1812
LAYCOCK Elizabeth Sarah 10.11.1828
LAYCOCK Martha James & Ann 15.7.1819
LAYCOCK Aaron Thomas & Priscilla 27.4.1806
LAYCOCK Judith Aaron & Maria 22.2.1833
LAYCOCK David James & Ann 11.7.1816
LAYCOCK Priscilla Aaron & Maria 27.4.1831
LAYCOCK Ann James & Ann 13.8.1817
LAYCOCK Margaret James & Ann 29.3.1814
LAYCOCK Sarah Richard & Ann Heaton 8.8.1836
LAYCOCK Barbara Aaron & Maria 9.3.1835
I have on my hard drive a very detailed spreadsheet of the registers of the Sutton Baptists and I don't know where I got it.
I'm hoping I left myself a trail of bread crumbs somewhere but have not found it yet. Some of the Laycock, Berry and Walton names here are now very familiar!
LAYCOCK David Baptised by J Walton and added 1.6.1780, excluded 29.5.1783, Restored 4.2.1796, excluded 2.3.1797
WALTON John Received from Church at Halifax 20.8.1780, Ordained Pastor 24.8.1780
LAYCOCK Thomas Baptised by J Walton 19.4.1793 and admitted as a member 21.4.1793 Died 10.9.1854 aged 88yrs
LAYCOCK Ann Baptised by John Walton 28.8.1796 and admitted as a member 18.9.1796 Excluded 22.6.1797
LAYCOCK Ann Restored 8.7.1809 dead in the year 1838
LAYCOCK Hannah Baptised on a profession of faith 8.6.1812 and added to Church 14.6.1812 Lives in Blackburn, withdrawn
LAYCOCK Judy Baptised before died April 1850
LAYCOCK Priscilla Baptised 6.8.1820 at Addingham
LAYCOCK Margaret Baptised 12.10.1834, dismissed to Skipton 9.1.1866, now Mrs Bairstow
LAYCOCK Ann Baptised 12.10.1834, died 1840
LAYCOCK Martha Baptised 9.11.1834
BERRY Ann Baptised 5.4.1835
BERRY Martha Baptised 5.4.1835, excluded March 1843, restored Nov 1845 now Mrs Hartley Died 23.11.1864
LAYCOCK Priscilla Baptised 5.4.1835
BERRY Eleanor Baptised 5.4.1835, dismissed to Haworth Sep 1848, dismissed to Colne 1860
LAYCOCK Mrs Baptised 3.2.1837, died 14.11.1855
BERRY Hannah Baptised 3.5.1840 dismissed to Haworth
LAYCOCK Joseph Received from Keighley dismissed to Cononley 5.10.1861
WALTON Margaret Baptised 3.2.1850, now Mrs Stephen Midgley
WALTON Maria Baptised 14.11.1858 now Mrs Murgatroyd
LAYCOCK Wilkinson Baptised 3.6.1866 of Sutton Mill
WALTON John Baptised 29.11.1866 of Sutton
WALTON Sarah Baptised 27.3.1870 of Sutton, now Mrs Heaton
Thanks again, Kite.