Right! Less busy at work, lunch eaten - maybe the brain is working better now?!

Potential Births:
December qtr 1869
Eastry district (i.e. Sandwich, Deal, Ash, etc) Vol 2a, page 819
Finnis, Charlotte Jane
September qtr 1870
Maidstone district Vol 2a, Page 600
Finnis, Charlotte Jane
The Charlotte born in Maidstone is here on the 1881 census:
Reference RG10, Piece 945, Folio 82, Page 19
Peel Street, Maidstone
Finnis, George H Head M 40 Brickmaker b Maidstone
Finnis, Catherine A Wife F 41 b Debtling(?)
Finnis, Alice K C Daughter F 16 Domestic Servant b Langley
Finnis, William G Son M 14 Shepherd Boy b Maidstone
Finnis, Annie M Daughter F 11 Scholar b Maidstone
Finnis, Thomas F Son M 7 Scholar b Maidstone
Finnis, Henry J Son M 5 Scholar b Boxley
Finnis, Arthur S Son M 2 b Maidstone
Finnis, Charlotte J Daughter F 5 months b Maidstone
But I cannot see the other Charlotte?