We have various documents, maps and photographs to help your research.
The following types of document might help:
- Early county maps
- Estate maps
- Early Ordnance Survey maps (from around 1878)
- Aerial photographs from 1940s, 1970s, 1980s and 1990s
- Magazine articles
- Paintings and illustrations
- Estate papers
- Sales particulars
- Designer’s plans
- Reports of the Hertfordshire Gardens Trust.