| Historic Environment Scotland | Listed Buildings Register | 17771 | |
| National Archives of Scotland (formerly SRO) | Inventory of William Stirling | | Reference missing but inventory shows in unpaid accounts that Hepburn was a client: the account was probably for the stables |
| Practice Archive dispersed | Stewart & Paterson Office List of Drawings from A G Lochhead (per Alexander Wright) | | |
| Professor David M Walker personal archive | Professor David M Walker, notes and collection of archive material | | Information about Thomas Beveridge work from D C Mays |