Think you are wrong Mac, Wellfield Terrace starts just after the Brentford Nylon Factory, reason I can be precise is a Great Aunt of mine lived at No 10 Wellfield Terrace, for many years, which is more or less across the road from the place that sells fireplaces, I will check a bit further as to exactly where Church was, I will look into this tomorrow, I will also speak to a few people who have lived in Bill Quay for years they might know.