For years, I was unable to access the records of one church my ancestors attended because when I went to try and see them I was told that the pastor was gone and no one else had a key to the safe in which the records were kept. Later on a whim I contacted the denominational archives and learned that the records I needed had actually been microfilmed and were in their collection.
Have you contacted the archives of the denomination with which the congregation was affiliated to see if they have a copy or the records or any additional information on the church in question? It may be worth a try.
Just last week I learned that the records of another church I need have been microfilmed and using that microfilm is easier than making a trip to actually view the records.