Dr.Hume’s Four Maps of Liverpool: Ecclesiastical, Historical, Municipal, Moral & Social’ by Reverend Abraham Hume DCL, were self-published in Liverpool in 1858. Each map has an inset “showing the locality of pauperism, cholera & violent deaths”. They were “First exhibited before the National Association for the Promotion of Social Science October 13 1858” – according to a statement to be found at the bottom of each map.
Hume’s map could be coloured in four different ways: Ecclesiastically; Municipally; and Morally & Socially.
As David Smith notes in his ‘Victorian maps of the British Isles’ (London : Batsford, 1985), pp. 63 & 110, ISBN 0-7134-4178-X, these can be considered as a precursor to those of Charles Booth. Interestingly, looking at the LSE archive’s official biography of Booth, they note that he was aware of a survey which estimated that 25,000 Liverpool children were neither at school nor at work. Although the connection has not been made definitively, given Booth’s connection with Liverpool and with the church, this is a reasonable assumption to make.
The full set of maps can be purchased from RGS: http://images.rgs.org/imageDetails.aspx?barcode=27888. I am grateful to António da Cruz (Tinho), Map Curator, Department of Geography and Planning, School of Environmental Sciences, University of Liverpool, for bringing this map to my attention.