I looked at the page from the baptism register again on NLI website as I find it easier to adjust size etc. Still unsure of female sponsor's first name, may be Sara. Surname of male sponsor seems to be spelled without a small c after M. I noticed that Laurence Donnelly's mother was also a McLaughlin. One of his sponsors was Brangan. I wonder if there was a Brangan-McLaughlin connection or if it was coincidence that they were the surnames of Jane Ward's sponsors.
Whilst browsing the marriage register (1763-1777), I saw a note after the marriage of Judith Branagan "they were clandestinely married by imposing upon one of the curates of Liffey St. Chapel". Another thing I noticed was that the priest was in the habit of not writing the name of a witness if he was the bride's father, although he wrote the name of one groom's mother when she was a witness.
There's a big gap in Swords' baptism registers 1778-1801. There are several Ward baptisms in Swords parish during the years of the earliest baptism register (1763-1777). There were also Ward baptisms at adjacent parishes Donabate, Finglas and Lusk.