Hello LWJ.

Jonny is the Daughter of Ann Looney als Costen, by Ann Costen's previous marriage to James or John Quillease.

Waiting for an update from Bob to confer notes on James Quillease being Joneys Father.
Reply will most likely be tomorrow.

I have found on Family search.
Name:Jony Quillease.
Gender: Male.
Christening Date: 20 Jan 1667.
Christening Place: MAUGHOLD,ISLE OF MAN,ENGLAND.
Father's Name: Jo Quillease.
Indexing Project (Batch) Number: C03817-1.
System Origin: England-ODM.
GS Film number: 106183. 106735.

The Maughold Baptism Register needs to be checked, just in case the Fathers name - could be either - Jo or Ja.

Averil