I have mentioned my 3rd great grandfather William Slight before in Finding Edinburgh map engraver apprenticeship records of William Slight in 1840s? and am continuing to pursue his baptism record in Seeking baptism record for William Slight, born ca 1832 near Haddington, East Lothian, Scotland?
Here I am looking for the marriage of his parents, my 4th great grandparents, James Slight and Elizabeth Boyd, which I deduce to have occurred in the late 1820s at or near Haddington.
From William's Marriage Certificate I know that his father was James Slight a Mason.
The 1841 Scotland Census verifies James (40; Mason J[ourneyman]), Elizabeth (40), Susan (11), William (9) and James (5) Slight living at Court Street, Haddington. Note: FindMyPast gives their surname as High - they seem to be missing from Ancestry)
William had a sister, Susan Boyd Slight who, according to her Marriage Certificate was the only daughter of late James Slight, Mason, Haddington), when she married Robert Bruce Ewart (a Mason) on 4 Jun 1852 at Saint Cuthberts, Edinburgh. Her 1873 Death Certificate in Victoria, Australia records her parents as James Slight and Elizabeth Boyd.
He had a younger brother, James Slight, who according to a declaration signed in Victoria (Australia) by his sister Susan Ewart (nee Slight) in 1867, was born in May 1839, but the 1841 Census suggests it was probably a few years earlier around 1836.
His mother's name was Elizabeth, which I know from his death record and the 1841 Census, and I believe her to have been Elizabeth Boyd who was born on 2 Aug 1796 and christened on 12 Aug 1796, at Haddington, East Lothian, to Thomas Boyd (a Mason) and Susan Cleugh.
His father appears to have been the James Slight born on 5 Sep 1797 and christened on 12 Sep 1797 at Whitekirk, East Lothian, to William Slight and Isobel Young.
http://www.nrscotland.gov.uk/files/research/list-of-oprs/list-of-oprs-702-725.pdf suggests that the Haddington marriage records for this period should exist.
However, when I search the Old Parish Registers Births & Baptisms I am unable to find it.
Does anyone have any suggestions of where/how else I could look for this elusive marriage record?