I think Maghull was becoming a dormitory town for Liverpool and expanding quite fast. A new house with labour-saving devices and gas cost you from ?600 apparently. Judging from the adverts, many Maghull residents were quite well off. They were obviously anticipating parking issues.
Important Notice
"Motorists are specially requested not to leave their cars either on the New Diversion Road, Hall Lane or Liverpool Road, but to use the official car park on the field. Entrance Liverpool Road.
All cycles must be parked in the official car park, infringement will mean expulsion from the field.
No icecream vendors or hawkers allowed on the field."