Charles Booth’s London, London School of Economics and Political Science. Poverty maps and police notebooks compiled by social reformer Charles Booth and his assistants between 1886 and 1903 as part of his research survey Life and Labour of the People in London.

Ordnance Surveys, National Library of Scotland. A set of topographic maps covering much of the British Isles from the 1840s to 1880s.

Tube Map Evolution, Ian Taylor. A map of the London Underground as it developed over time, beginning in 1863, based on historical maps and sources from Transport for London.

Walks in London, Augustus Hare, 1880. Contemporary notes and observations on the districts of London, their history, landmarks, and general character.

The Police Code, Sir Howard Vincent, 1912. First published in 1881 by the founder of the Criminal Investigation Department at Scotland Yard, the manual discusses police procedures of the time.

The Proceedings of the Old Bailey, Digital Humanities Institute at the University of Sheffield. A database of trials held at London’s central criminal court, 1674–1913. The transcripts are searchable by crime, verdict, and punishment as well as by the personal details of those involved.

The Family Physician, Cassell and Co, 1865. A household manual which provides an overview of general medical knowledge at the time.

Flora Symbolica, John Ingram, 1869. A contemporary source on floriography, or the Victorian language of flowers.

The Bitter Cry of Outcast London, Andrew Mearns and the London Congregational Union, 1883. Subtitled An Inquiry into the Condition of the Abject Poor, this pamphlet details the abhorrent housing conditions faced by the impoverished in the city.

How the Poor Live and Horrible London, George Sims, 1889. In a series of articles originally written for The Pictorial World and The Daily News, Sims visits the inhabitants of the poorest districts of London.