Hi Angela
Welcome to Rootschat, hope you make lots of friends on here, I've had so much help over the years from other Rootschatters I would have been lost without them.
Many thanks for taking the time to reply, I'm always glad to hear from anyone researching the same families. I've found Ambrose's death on the Calverley website well I hope it is, on the burial section there is an Ambrose Malthus who died aged 66 on 18 May 1816 Hampsthwaite. I've come across the surname Malthus a few times as a variation of Malthouse, but still not found Ambrose's birth. I didn't know about the boundary dispute or Jane going to the school at Burnt Yates.
There are two families with a Nathaniel Calverley in them when you are going further back into Abigail's family, our Nathaniel is the one born 1647 Cowling Head, Kildwick to Thomas Calverley and Deborah, Bapt 19 Sept 1647 Cowling Head Chapel Kildwick. THOMAS CALVERLEY 1624 Kildwick to William Calverley and Mary Wilson Bapt 10 Feb 1625 St Andrew's Church Kildwick. WILLIAM CALVERLEY c1583 in Embsay, Skipton. William died Jan 1630/1, aged abt 47. Buried 18 Jan 1630/31 St. Andrew's Church, Kildwick. Most of the info is from Wharfegen another great free website if you haven't come across it already.
Regards
Julie