Hi Jill,
I had a look through the British Vital Records and found some births all to a Thomas Key and wife Agnes Fleming. If these are the children to the same couple, they would appear to have moved around quite a bit. Your date of 1841 for them being in Falkirk would tie in to two of these children, the 1st Thomas who presumably died in childhood and John.
None of the dates of births conflict and are all within a period of eleven years, the only thing not to tie them all together is the locations. (West Lothian and Stirlingshire are side by side so we're not talking any great distances)
I'll list the births and hopefully you'll be able to make some connections.
Isabella Lesslie Key
Date of Birth: 02.12.1837
Place of Birth: Bathgate, West Lothian
Recorded in: Bathgate, West Lothina
Thomas Key (1)
Date of Birth: 22.02.1839
Date of Christening: 31.03.1839
Place of Birth:
Recorded in: Falkirk, Stirlingshire
John Key
Date of Birth 26.09.1840
Cate of Christening: 29.10.1840
Place of Birth:
Recorded in Falkirk, Stirlingshire
Thomas Key (2)
Date of Birth 14.04.1842
Date of Christening 03.06.1842
Place of Birth:
Recorded in: Queensferry, West Lothian
William Key
Date of Birth 15.06.1844
Date of Christening 19.07.1844
Place of Birth:
Recorded in: Queensferry, West Lothian
Barbara Key
Date of Birth: 28.04.1846
Date of Christening: 19.06.1846
Place of Birth:
Recorded in: Queensferry, West Lothian
Anne
