About 6 years ago, the Frodsham Local History Society had all the graves in the (old) churchyard recorded. This very comprehensive record can be found at Frodsham library.
The Anglican church yard was closed to burials some time ago..the churchyard within the grounds of St.Laurence that is.
My cousin has found this record extremely useful in researching our/her family.
Had we still been living in Frodsham,I would have done this for you :)Marilyn.
Maybe some kind person could take a visit to the library for you?