My father Arthur Gerard O'Grady married my mother in NSW during the 1940's. He later divorced an remarried an Englishwoman named Val and had two daughters - Lyn & Shani who I believe live in Brisbane. I would like to contact them, but also members of the Pizarro family who emigrated from Chile and are related to Francisco Pizarro. These would be members of my father's maternal side. I know nothing about his paternal side except that his father was a bridgebuilder named Charlie, I think.