The company that became J&E Hall Ltd was founded in 1785 as an iron works in Dartford. It later became an engineering company that had its main manufacturing site in Hythe Street, Dartford, where the Prospect Place retail park now is. J&E Hall was a major employer in the town over many years. There is an article about the history of the company on Wikipedia https://en.wikipedia.org/wiki/J_%26_E_Hall.
J&E Hall had a sports ground (now closed) for its staff,
with an entrance in Darenth Road in South Dartford. The Princes Park Stadium
(used by Dartford Football Club) was built on this land.
I have been given a box of photos from the 1950s and 1960s, showing J&E Hall staff in various settings and activities. Here are two of the photos:
The Hythe Street entrance to the main manufacturing site in Dartford
The J&E Hall cricket team.
If you can identify anyone in the above photo, please let me know (on PhilT42LQS@Yahoo.co.uk).