Extract from minute concerning acceptance of Blackwoods` tender to publish various editions of the Hymnal., 1864, MS.30013, folios 206-207. 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/29234 Accessed September 23, 2024.