Print by J and C Walker - From Greenock to Dumbarton to show points at issue with Clyde Lighthouse Trustees - Clyde, River - surveyed by Robinson and Calver., 1860., MS.5846 (51). Plans chiefly made by Messrs Stevenson, the Edinburgh civil engineers., MSS.5843-5896. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/58822 Accessed September 23, 2024.