You'll probably find that William (The Quaker)'s daughter Joney d.1689 married a John CALLOW of Ballneskeig Mooar progenitor of the Ballneskeig CALLOW line.

The heir Robert 1654-1731 (m. Ellinor (sic)STOCKDALE) is the CALLOW Ballafayle line

The second son John I have no records on, suggesting he moved away or died young.

Other offspring I have are Ann (1657), Isabel (1651), Margaret (m Edwd CROZIER) & the above mentioned Joney

There are several intermarriages between the CALLOW lines & many are noted by the Radcliffes in their history.

They would have found, as I did, that it becomes very difficult to positively identify the myriad of William and John Callows that inhabited Maughold in the 1600s.