Address: Praha 7, Šternberkova 1357/10, (2011)
Gustav Metzl was born on 1 September 1879 in the district Fünfhaus of Vienna. His parents were Moritz Metzl and Mathilde née Klein (1857-1896). He had three sisters and one brother. He was married to Ida née Fried. It is not known, when the couple moved to Prague. Their last residence before deportation was in Prague VII, Šternberkova 10. On 28 April 1942, Gustav Metzl and his wife were deported to Theresienstadt concentration camp by transport Ao. His transport number was 994 of 1,001. Two days later, on 30 April 1942, the couple were deported to Zamość by transport As. His transport number was 994 of 1,000. Both were murdered by the Nazi regime.

Two months later, his sister Ernestine was deported first to Theresienstadt, then to Baranovichi. She lost her life too during the Shoah. His sister Ella and her husband Josef Bermann could emigrate and survive. Josef Bermann died 1949 in New York, Ella Bermann in 1962 also in New York. Also their two sons could survive.