The Duffield Memorial is a gravesite monument located in the churchyard of the Church of St Mary in Great Baddow, Essex, England.

In 2022, Historic England designated the work a Grade II listed building, noting it as an unusual example of both Art Nouveau metalwork and churchyard memorial.

The memorial is made of riveted sections of bronze sheet metal and comprises edging and a vertical cross.

[12] The couple had three surviving children: sons William Bartleet (1861–1918[13][14][15]) and Arthur Stewart (1867–1930[16][17]), and daughter Florence Marion.

[31] He designed a number of other memorials while a teacher, including First World War monuments for East Knoyle,[32] Mortimer,[33] and the University of Reading.

[23] The Celtic wheel cross sits within the grave plot and surrounding edging, and is connected by a shaft to a four-sided base.

[42][43] Newspapers reported on it on 25 and 26 October, praising it as "very fine" and "admirably executed", and noting that it was "quite unique, at any rate in this neighbourhood".

[41][note 6] On 25 July 2022, Historic England designated the memorial a Grade II listed building,[41] indicative of "special interest".

[41] Architecturally, the organisation cited the "unusual example of Art Nouveau design in metal work, well detailed and combined with a conventional form of churchyard memorial, a Celtic wheeled cross".

[41] For group value, Historic England considered the memorial in conjunction with the Church of St Mary, itself a Grade I listed building (indicative of "exceptional interest").