Came across this family in 1851 with Jane as a Gray and widow  but no daugter Mary  

Jane   Gray   Widow 40   1811   Pauper   Tarland, Aberdeenshire
Ellen   Gray   Daughter   12   Tarland, Aberdeenshire
Johanna   Gray   Daughter   9   Tarland, Aberdeenshire
Lewis Gray   Son   5   Tarland, Aberdeenshire
N K   Gray   Son   0 Tarland, Aberdeenshire
Can't see a baptism/birth for Harry