Dear heywood and luimneach
Than you so much for your advice, the place on the census is definitely Ross Keen, but it is part of the damaged census of 1851, and the names I am looking for are Toole and Dowd, also Ward, Lynch and Rafferty, so Cork sounds a good place to start!
Thank you so much for the advice and I will definitely look at the sites you have suggested.
Kind regards and many thanks again,
Pat
