The gate's location can be seen in the bottom right of this 18th century map: http://www.motco.com/Map/81002/SeriesSearchPlat...
View of Newgate and adjacent buildings, with a description below. ca. 1760. © City of London http://collage.cityoflondon.gov.uk/collage/app?...
Chart showing the number of references in each month of the diary’s entries.