Memorandum of events in life of William Sim, chiefly from old diaries and letters, commenced during recovery from a very dangerous illness. , 1886., Acc.4496/1. Business and personal papers of William Sim, colour manufacturer., Acc.4496/1-19. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/65904 Accessed September 24, 2024.