Hi sem73.
Yes that is it. Took some finding on Ancestry but got there in the end. What did not help was that the Ancestry transcription was wrong by having my great grandfather down as Adams, the same as the name prior to his and the result was that as far as Ancestry indexes were concerned he did not exist. Put a note on the census screen to correct.
Many thanks for you help as I doubt if I would have found him if it had not been for your kindness.
BMG