Note of Taxes and Public Burdens paid by Stevenson and Co. on Printing Premises at Thistle Street, Edinburgh., 1856, MS.30010, folio 342. Papers of William Blackwood and Sons., MSS.30001-30984. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/28969 Accessed September 23, 2024.