The Bills of Mortality were weekly reports that recorded the number of deaths in London, beginning in 1603 and continuing consistently until 1819. These bills reported the number of burials and plague deaths in each London and surrounding parish. They also reported the different causes of death, male/female christenings, and male/female burials for the entire city. The causes of death included illnesses and ailments, as well as accidents and killings. Two causes of death—execution and murder—have the possibility of being cross-referenced with other early modern documents, particularly court records.

We are in the process of building out a data API to support the data work we’re undertaking with the transcription of the plague bills. We anticipate hundreds of thousands of rows of data by the end of our transcription process, and we wanted an easy and efficient way to work with that data. As part of our work in data-driven historical research at RRCHNM, we are building a data API to store and access data from databases.