Contact the archives dept in their local Council Offices or library. Our local council were a mine of knowledge and help when I was seraching for an unmarked communal grave in 1941, without any headstones or markers on the ground. One phone call while I was in the graveyard, they talked me from Headstones nearby and found the spot within minutes of my enquiry.
Good luck with your visit, I hope you locate and find the information for which you are seeking.