Found my Dad (Also Hugh) as a nine year old with family at 41 Quay Street, Saltcoats. His father James Kelly McCallum was listed as a fireman on one of the ICI Explosive transport ships.
You'll be able to download pages from the actual census - six credits per page.
Most purchases are made using Credits which cost £0.25 each and are available in batches of 30 (£7.50) or 40 (£10).