I am having trouble finding the date of death of my ancestor, Margaret Wilson. She was born about 1841 in Ireland, and the last time I see her is on the 1871 census, aged 30 living at 19 Grace Street, Glasgow Barony. According to her daughter's marriage certificate (31.12.1884, Maryann Wilson to Alexander Aird) she was deceased at that time. For some reason I can't find the birth of Mary-Ann or her elder brother Alexander either, although I think it was 1863 and 1861 respectively in Glasgow. If anyone can help I'd be very grateful. Margaret Wilson (nee Henderson was married to George Wilson, also born in Ireland.)