All I know is that in the Eastern Cemetary in Dundee there is a gravestone showing Marys death and the following information
Descendants of Thomas Whitton
Generation No. 1
1. Thomas1 Whitton died 9 June 1850 in interred in Howff Cemetary. He married Elizabeth McIntosh 14 June 1828 in Dundee ref 282-21-2.
Notes for Thomas Whitton:
Feuer Victoria Street, Dundee
details from Stones in the Eastern Cemetary, Dundee
Notes for Elizabeth McIntosh:
details from Stones in the Eastern Cemetary, Dundee
Children of Thomas Whitton and Elizabeth McIntosh are:
2 i. Mary2 Whitton, born 1 November 1831 in Dundee; died 22 January 1915. She married John McIntosh 1855 in Dundee ref 282-1-154.
Notes for Mary Whitton:
details from Stones in the Eastern Cemetary, Dundee
3 ii. David Whitton, born Abt. 1830; died in interred in Howff Cemetary.
Notes for David Whitton:
details from Stones in the Eastern Cemetary, Dundee
+ 4 iii. Isabella Cuthbert Whitton, born 13 February 1829 in Dundee; died 10 April 1914 in Holytown, Lanark or Chapelhall, Falkirk 625-2-0170.
Generation No. 2
4. Isabella Cuthbert2 Whitton (Thomas1) was born 13 February 1829 in Dundee, and died 10 April 1914 in Holytown, Lanark or Chapelhall, Falkirk 625-2-0170. She married James Crichton 5 June 1856 in Dundee.
Children of Isabella Whitton and James Crichton are:
5 i. Elizabeth McIntosh3 Crichton, born Abt. 1859 in Dundee; died 14 February 1859.
Notes for Elizabeth McIntosh Crichton:
details from Stones in the Eastern Cemetary, Dundee
6 ii. James Crichton.
Notes for James Crichton:
DD.
Minister of United Free Church, Chapelhall, Airdrie