| National Archives of Scotland (www.nas.gov.uk) | National Register of Archives | NRAS482/Box 8/Bundle 6 | |
| National Monuments Record of Scotland/NMRS, RCAHMS | NMRS Library | | Copy of drawing and letter, dated 1872, in possession of the Earl of Home |
| National Monuments Record of Scotland/NMRS, RCAHMS | NMRS Photographic Archive | | For Wilson work. Also Wardrop & Reid scheme LAD 28/24. Owen jones drawings LAD 28/58, 47/48-57 |
| National Monuments Record of Scotland/NMRS, RCAHMS | Watherston Collection | | LAD/28 |
| Professor David M Walker personal archive | Professor David M Walker, notes and collection of archive material | | For Henderson & Wilson work |
| RIBA Archive, Victoria & Albert Museum | RIBA Nomination Papers | | James Kerr: L v18 no1382 |