I am looking for any information on John Thomas Leyden and his family. His father is unknown to me, but I know his mother to be Kathleen McCarthy - Moore. John emigrated to Australia, and married Catherine Veronica Willis on 24 June 1894, in NSW Australia. John's family is greatly unknown to me but I have pieced the following together from letters, so accuracy of this information is uncertain. John had a brother, Pat (known as Uncle PP), and his wife Florence, They had two sons, Robert and Herrick. Mary Honara Leyden who married Frank Catton, may be his aunt I do not know, but I believe they were childless. He has a sister-in-law Mary who married Con Leyden and had three sons I think. The eldest's name I do not know, the other two were Jack and Francis. She married again after Con was killed, a Mr Hunt, they lived in Jersey City, USA. Another brother may be Michael.