It was adjacent to Allerton golf course it belonged too some Ecclesiastical mob, iirc they had a couple of teams of variohs levels that floated about playing one off games all very Ad Hoc, a bit like The Ramblers.
One was called Convocation, if you had a bye in your fixtures you could sometimes arrange a fill in.
They weren't very Christian - if it was above grass level it got kicked.
I remember playing against them for Old Caths because I scored in a 2-2.
You probably went up Rose Lane, turn right along Mather Ave, turn left into Booker Ave at the Synagogue, head upto Caldies turn left into Allerton Rd.
About 2/300yds on the left there was a single width car entrance...basically a Muddy gravel track between those old sand stone walls, blink and you'd miss it.
They had old, really old ramshackle wooden dressing rooms and...I use the term very loosely...a shower made out of sandstone slabs with two 1/2 pipes...no shower head...with just cold water, very spartan and monastic.
The kids had fun though they picked a monster load of Blackberries
My best guess is its now a small housing estate called Sycamore Park,