| Reference list for original documents etc | ||
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| Llanfilo
Board School Log Book |
Powys County Archives | B/E/PS/51/L1 | |
| Cathedine
School Log Book |
Powys County Archives | B/E/PS/13/L1 | |
| Pengenfford
Board School Log Book |
Powys County Archives | B/E/PS/73/L1 | |
| Bronllys tithe map | Powys County Archives | P/X/9/M/ | |
| Talgarth tithe map | Powys County Archives | P/X/9/M/ | |
| Hay Tramroad sketch map, track and wheel drawings | Powys County Archives | Original artwork | |
| Ordnance Survey map showing old and new railways | Powys County Archives | Brecknock 1st edition, 1887, sheet 29.1 | |
| Ordnance Survey map showing Talyllyn Tunnel | Powys County Archives | Brecknock 1st edition, 1887, sheet 28.15 | |
| Talgarth Tower and bridge photograph | Powys County Archives | "Views of Talgarth" booklet, c1900 | |