Been having another search of the CDs and have found the entries
Linlithgow Cemetery
Section G Lair 255 (looks to a common grave 8 unrelated child internments)
Sarah Bonnar aged 1 from Bridgend, interred 23 March 1912
Section H Lair 311
Hugh Bonar aged 32 from Bridgend, a retortman died of pneumonia. interred 24 June 1912
Nancy Bonar aged 72 from Philpstoun, died from heart disease, interred 27 June 1914
Catheriine Bonar aged 72, lived at 358 High Street, Linlithgow, interred 12 August 1947
There are a few other Bonar entries and two Bonner entries (from Bridgend Ann in 1970 and "Child" in 1947).
Not sure how I missed these the first time as I was using wildcards and dates to counteract different spellings.
Eric