Born in City of London, St Bride's Fleet Street.1

From the Parish Register :_
"January
25 / Sarah D. of Zachariah Foxall and Sarah Darby / December 25"

Baptised in City of London, St Bride's Fleet Street.1

Father - Zachariah Foxall Darby
Mother - Sarah Darby

Mentioned in Will.2

of Elizabeth Walkden, formerly Carpenter
Described as - "his daughter Mary Darby"

Research note :-
"His" refers to Zachariah Foxall Darby

Witness at wedding in Hampstead, St John at Hampstead.3

Of Eliza Darby & John White

Mentioned in Will.4

of Zachariah Foxall Darby
Described as :-
"my three daughters Mary Caroline and Louisa"

Mentioned in Codicil to Will.2

of Elizabeth Walkden, formerly Carpenter
Described as - "Mary Darby of Crossant Place"

Died in Brighton.5,6

From the London Daily News :-
"March 2, Miss Mary Darby, Grand Parade, Brighton, and Eastern-house, Hurstpierpoint, aged 93"