Siegfried had a twin sister known as Irma when she was born. She changed her name to Irene and she is buried in the Vienna Jewish cemetery as Irene SCHINDEL. She married Salomon SCHINDEL in Straznice in 1900. They had three children only one of whom survived the Shoah and that was Greta the youngest. Her son Robert SCHINDEL lives in Vienna and is a well known writer. The photo of the house that Siegfried and his wife Aurelia born HABERFELD (in Straznice) lived in was taken by Robert when he and his cousin Daniela Torsh from Sydney travelled there in 2010 with a friend of his. She is the woman in the photo outside the house.