The London Society of Lithographic Printers was established in 1869. In 1912 it merged with the Amalgamated Society of Lithographic Printers, which had had a London Branch since its establishment in 1880.

The abstracts and auditors' reports from 1892 to 1900 (MSS.39/ASL/6/LS/1-8) include complete annual lists of members, indicating only name and whether they had left or died during the year.