Louisa and Harriett MITCHELL were the two youngest children of William and Louisa MITCHELL of Grafton Street, Dublin.
According to his will made on 7 September 1840 they were under the age of 21 years, and were put under the guardianship of their eldest brother George Mitchell who at that time was just married and aged 24-25. William died on 9 September. His wife Louisa died in Jan 1838 aged 43.
The will also said they were of tender years and so could have been quite young.
Have not found anything about them after that date. A number of online trees are the only other place they have shown up. They are not buried in Mount Jerome Cemetery where their parents were buried.
Hoping someone can assist.
Thanks
Ian C