| Historic Environment Scotland | Listed Buildings Register | 48311 | |
| National Archives of Scotland (formerly SRO) | Heritors Records | | HR/591 |
| National Monuments Record of Scotland/NMRS, RCAHMS | Weddell and Thomson Archive Summary Material (Handlists, Job lists etc) | | Thomson's job lists and Thomson & Menzies job list (for Thomson and Thomson & Menzies work) |
| North Lanarkshire County Archive, Cumbernauld | Motherwell Dean of Guild Records | | |
| RIBA Archive, Victoria & Albert Museum | RIBA Nomination Papers | | David Thomson: F v5 p99 (microfiche 91/E4) |