"Westminster Burials Transcription", database with images, Findmypast (http://www.findmypast.co.uk : accessed 9 September 2018), entries (3) for Esther Gilbert buried 19 Mar 1851 in St Martin in the Fields

Text from source:

Burials in the Parish ofSt Martin in the fields in the County of Middlesex in the year 1851
Name Abode When buried Age
Esther Gilbert 94 St Martins Lane March 19th 31