Hello, I live in South Africa and for 4 years went out with a Fritz Schloegel from Graz. He was born in 1938, and had a sister named Elizabeth (?) Schmiedtbauer. She had immigrated to South Croydon, England. Fritz had a daughter in Graz. I last saw him in about 1976 in Johannesburg. He never mentioned having a brother, though. Don't know if this is helpful to you.