Mary Ann McDonald was estimated to be born about 1807 being 21 years prior to her marriage
She married Edward Cocker on the 28th April 1828 at Whitechapel in Middlesex, England.
https://www.findmypast.co.uk/transcript?id=R_850868917 Transcript; First name(s) Edward Last name Cocker Name note - Marriage year 1828 Marriage date 28 Apr 1828 Residence Whitechapel, Middlesex, England Marriage place Whitechapel County Middlesex Country England Spouse's first name(s) Mary Ann Spouse's last name McDonald Spouse's age - Record set England Marriages 1538-1973 Category Birth, Marriage, Death & Parish Records Subcategory Parish Marriages Collections from England, Great Britain