Some further research for RChatters
(Gleaned from the digitised newspapers in Australia) In this 1825 cutting, there is reference to the philosophic the moral
Paley,and a book that Paley penned. The heading "fornication" is mentioned, and the edition etc ... Vol 1, pp 221, 21st Edin Edition.
So as it was in its 21st Edinburgh edition before 1825, it could well be a book published in mid 1700's ... which is when these wee Scottish babies were baptised.
http://trove.nla.gov.au/ndp/del/article/2183933 14 April 1825 Sydney Gazette
AND ALSO (some further thoughts)
Those conspiring Grandparents may well have chosen to NOT recognise the marriage of the parents of those 2 wee Scottish babies...
Have you determined the names of those grandparents ... were either couple sufficiently funded to seek to ignore (choosing not to recognise) a marriage of one of their own issue
Have you considered if the parents of those 2 babies ... did either of them have a sibling who may have sought to whisper to the clergy so that sibling could position themselves and their issue to gain a family inheritance ..
Did either of those parents suffer the Creepie Chair
Did either of those parents have reading skills ... if not then perhaps they did not ever discover what was recorded against those baptismal records ...

... I am sure they would have been severely addressed by the Clergy, but if they were not able to read, then here's some proof that the adage "sticks and stones may break my bones, but names will never hurt me"
EDIT TO NOTE ATTACHMENT
Cheers, JM