Previous thread, connected but not directly related
http://www.rootschat.com/forum/index.php?topic=690405.0Note that you will not get a marriage certificate for John Rigby and Janet McLeod as they were married before the introduction of statutory civil registration in 1855. The best you can hope for is a listing in the parish register.
Just to get this straight in my mind. You have the marriage and death records of John McLeod Rigby, who was born about 1810/11. Do you have his baptism record? I presume that you have him in the 1841, 1851 and 1861 census?
You are now looking for his parents, John Rigby and Janet McLeod. Why do you think they might have been married after John McLeod Rigby was born?
Have you checked Scotland's People including the Roman Catholic marriages? Have you checked the International Genealogical Index at
www.familysearch.org?If they are not there then the possibilities are
- that the marriage was never recorded, or, if it was, the record has not survived. This is the most likely explanation.
- that they were married somewhere other than Scotland, if John was serving in the Army at the time.
- that the record, if it exists, is in the registers of one of the dissenting churches or of the Episcopal Church of Scotland. In which case, you are looking for a needle in a bale of straw rather than in a haystack. Some of the surviving registers of the dissenting churches are in the National Archives of Scotland, but there are very few going back as early as that. (The Free Church isn't an option as it did not come into existence until 1843.) The surviving Episcopal registers are still with the churches or diocesan archives so unless you know where they were married you will struggle to find any record.
You would probably get on better if you could find John's Army service record. Try the National Archives
http://www.nationalarchives.gov.uk/ or Find My Past
www.findmypast.co.uk