Following the Munich Conference and the annexation of the Sudetenland to the Reich in October 1938, Nazi anti-Jewish laws were implemented throughout the region. The Jewish population was persecuted and dispossessed of its property (Aryanized). These measures led many Jews to flee, mostly to neighboring Czechoslovakia.
In November 1942, the RSHA initiated transports of the remaining Jews in the Sudetenland region. Gestapo headquarters in Liberec (Reichenberg), headed by Rudolf Schröder, oversaw the deportations.
On 18 December 1943, a memo was sent by Chief of the Gestapo Heinrich Müller to the regional police offices, asking that Jewish spouses married to non-Jews, whose marriage ended in divorce or death, be deported to the Theresienstadt Ghetto.
The transport left Usti nad Labem to the Theresienstadt Ghetto on 14 November 1944. This transport was listed as Ez, which were the German initials for special transport of individuals (Einzelreisende Sondertransport). It consisted of a single woman, 37 year old Anna Kalb, resident of Jablonec (Gablonz). At the time of her deportation, Anna Kalb was in advacned stages of pregnancy. Very little is known about this transport..
It is assumed that Anna Kalb was driven from Usti nad Labem to Theresienstadt. In the Theresienstadt Ghetto listings the transport was recorded as XIX/7 Ez, where the Roman numeral XIX refers to the area of Usti nad Labem.
According to historian Rudolf Wlaschek, Anna Kalb gave birth six weeks after her arrival in Theresienstadt, on 5 December 1944. She and her newborn son were both able to survive the harsh conditions in Theresienstadt until the end of the war.