Hi, the records prior to 1855 do not list the names of parents of the couple marrying. The following is a transcription of the marriage of John & Grace.
Marriage January 1834
John Craig, flesher, Bridgeton, and Grace Dobbie residing there, married at Greenhead 28 January 1834 by the Rev. Alexander Harney, minister of the Relief Chapel, Calton
Hope this helps, Kim