Organ Factory AKA Harrison and Harrison Organ Works AKA former organ works, Hawthorn Terrace, Crossgate, Durham (Durham) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Durham County Council | Jul-2016 | Conservation Area Appraisal: Character Area 3, Crossgate (Durham City) | pages 136, 142 & 260; Image page 136 |
| 2 | Harrison and Harrison Company History Brochure 2020 | Brochure | ||
| 3 | Elvin, L | 1973 | The Harrison Story | p55 |
| 4 | 23-Jun-2021 | City of Durham Parish Council Durham City Neighbourhood Plan 2020 to 2035 | page 143 | |
| 5 | Private Individual | 17-Mar-2022 | Harrisons Organ Factory, Hawthorn Terrace, Durham, Local Listing Form & 7 photographs | Local Heritage List proforma |
| 6 | Local Heritage List, Durham City, April 2023 | Page 8 |