There is a plan dated 1857 in the Bradford Office of the West Yorkshire Archives ref BDP67/5/1 but it is badly damaged. We have made a list of grave owners from this plan and added to it grave owner information from the burial book ref BDP67/5/2 relating to the Old Yard.
This is a list of names which might help you to locate a grave. Surnames in CAPITALS indicate that there is a monumental inscription - see Monuments tab. (Steve there are two sheets in this file one alpha the other number) All references relate to grave numbers. The grid system seems to have been a way of locating graves in relation to each other.
You can download a plan of the old yard from here: