The route of this road runs across the parish along the path of Robbery Bottom Lane, continuing on as a public bridleway to Datchworth and then Braughing, on its eventual way to another major Roman town, Camulodonum, Colchester.

Apart from the trade generated by travellers, life in Woolmer Green was agricultural and feudal until the middle of the nineteenth century.

This level of service persisted until recent years with a general store and Post Office, a baker, a small supermarket and a butcher.

The area around Knebworth and Woolmer Green provided what was probably the last overnight stop for the animals and their drovers before they reached London.

For a small fee visitors could walk through the garden with its nursery-rhyme and Middle Eastern themed sculptures, many of which were animated by handles, pumps, windmills and various levers.

[2] Harry McDonald arrived in Woolmer Green in 1937, having walked from his home town of Bradford in Yorkshire, seeking work.

Prior to the millennium year, 2000, Woolmer Green was part of the parish of Welwyn for local government purposes.

The boundary between Woolmer Green and Welwyn parishes is formed by the path of the East Coast Main Line railway.

Immediately to the south of the viaduct the railway enters the first of two tunnels (with a very short open section in the middle) between Woolmer Green and the station at Welwyn North.

This was a wish particularly dear to the heart of the Revd Edwin Hoskyns, who was a curate at Welwyn when part of the school was consecrated as a church.

The problem of finding a suitable site for the new church, which was to be dedicated to St Michael and All Angels, was soon solved when Lord Lytton presented the Church authorities with the plot of land at the junction of London Road and Mardleybury Road, which was to prove an ideal site with easy access for the majority of the villagers.

By October 1899 only £1500 had been promised so the decision was taken that only the walls and the roof of the church should be built, and the internal fittings left to be proceeded with as the money came in.