Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex. If you can contribute to the site, send me some details to Kevan, along with some description of the specific property.
Directory of Pubs in the UK, historical public houses, Taverns, Inns, Beer Houses and Hotels in Hertfordshire .
| Premises | Pic? | Text? |
| Black Horse, Colney Street, Frogmore, St Albans, Hertfordshire | No | Yes |
| Falcon, 72 Park Street, Frogmore, St Albans, Hertfordshire | No | Yes |
| George & Dragon, Colney Street, Frogmore, St Albans, Hertfordshire | No | Yes |
| Jolly Farmer, Colney Street, Frogmore, St Albans, Hertfordshire | No | Yes |
| Old Red Lion, Park Street, Frogmore, St Albans, Hertfordshire | Yes | Yes |
| Red Cow, Colney Street, Frogmore, St Albans, Hertfordshire | No | Yes |
| Swan, Park Street, Frogmore, St Albans, Hertfordshire | No | Yes |
| White Horse, Park Street, Frogmore, St Albans, Hertfordshire | No | Yes |