Maude Killick (b.1920?) + Minnie Killick (b.1924?)

[Milliepede]

Where have you found a Patricia Maud Smith - what record?

With a surname like Smith she need not be the same person.

[izonme]

Patricia Maud Smith
in the England & Wales, Civil Registration Death Index, 1916-2007

Name:   Patricia Maud Smith
Death Age:   86
Birth Date:   29 Feb 1920
Registration Date:   Oct 2006
Registration District:   Waveney
Inferred County:   Suffolk
Register Number:   B27C
District and Subdistrict:   753/1B
Entry Number:   066


------
Name: Maud Louisa Killick
Birth Date:   29 Feb 1920
Marriage: William J Smith,  July 1950, Lambeth Reg District.

[izonme]

However I did find another marriage Index-

Maud L Smith
in the England & Wales, Civil Registration Marriage Index, 1916-2005
Name: Maud L Smith
Registration Date   Apr 1973
[May 1973]
[Jun 1973]
Registration Quarter   Apr-May-Jun
Registration District   Lambeth
Inferred County   Greater London
Spouse   
John E S Smith
Volume Number   5d
Page number   138

[Milliepede]

You could start with a marriage certificate first to make sure you have the correct Maude for your family.