The Royal Commission on Historical Monuments of England survey, covering the south east of the county, including the towns of Burnham, Hornchurch and Upminster.
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An Inventory of the Historical Monuments in Essex, Volume 4, South east (London, 1923), British History Online https://prod.british-history.ac.uk/rchme/essex/vol4 [accessed 19 April 2025].
An Inventory of the Historical Monuments in Essex, Volume 4, South east (London, 1923), British History Online, accessed April 19, 2025, https://prod.british-history.ac.uk/rchme/essex/vol4.
An Inventory of the Historical Monuments in Essex, Volume 4, South east (London, 1923), British History Online. Web. 19 April 2025. https://prod.british-history.ac.uk/rchme/essex/vol4.