Besides the tree Jim found on A******y, there are various online references to John Winning and Sarah Waddell.
Neither SP nor the IGI has a marriage, but there are some baptisms
Jonet Wining, baptised 27 June 1686 (SP and indexed IGI)
John Winning, baptised 12 February 1689 (submitted IGI, not in SP)
Thomas Winning, baptised 13 December 1691 (SP and submitted IGI)
Marie Winning, baptised 4 January 1694, (SP and indexed IGI, but mother's given name listed as
Margret)
Matthew Winning, baptised 28 May 1696 (SP and submitted IGI)
There is a tree at
http://familytreemaker.genealogy.com/users/w/i/n/Joan-E-Winning/WEBSITE-0001/UHP-0107.html which shows only Thomas and Matthew, and descendants of Thomas.
There is correspondence on RootsChat
http://archiver.rootsweb.ancestry.com/th/read/SCT-GLASGOW/2008-06/1214213612 listing some of Thomas' descendants.
None of these offer any suggestions as to the parentage of Sarah Waddell.