My Grandpa, Josef Thurnwald born 26/02/1920 - lived in Klatovy, West Bohemia, Czech Republic. Came to Australia and changed his surname to Thurnwald (Unsure on the original spelling please see above). He hasn't shared much information with us about his family. I don't know his parents/siblings names. But we do know that his Aunt was Eliska Krasnohorska (born Alzbeta Pechova)- we know that as he insisted my middle name be Eliska. Could anyone give me some ideas on where I might find information on my ancestors?