On the 1841, we have:
High Street, Falkirk
Henry Aitken, 30-34, Writer, b. Scotland
Isabella, 30-34, b. Scotland
Eleanor, 14, b. Scotland
Helen, 5, b. Stirlingshire
Elisabeth, 11 months, b. Stirlingshire
Dorator House, Falkirk
Thomas Aitken, 45 -49, Writer , b. Stirlingshire
Elizabeth, 40-44, b. England
Elizabeth, 20-24, b. Stirlingshire
Margaret, 15-19, b. Stirlingshire
John, 10, b. Stirlingshire
George, 3, b. Stirlingshire
Thomas, 3, b. Stirlingshire
Isabella MacAllan (?) , b. Stirlingshire
I think further investigations of the births are needed!
Gadget