See S. Meen, Juden in Themar - Their Voices Live On https://judeninthemar.org/the-solomon-karoline-muller-family/ and
See S. Meen, “The Family of Hermann and Babett (née Sichel) Schwed"  https://judeninthemar.org/bertha-schwed-muller/

• Rebecka's name is spelled in various ways in the records: Rebecca, Rebeka, Rebecka.
• Date/place of birth in United States Holocaust Memorial Museum; Washington, DC; Poland, Lódz Ghetto Register Books, 1939-1944; Record Groups: RG-15.083M; File Name: rg-15_083m_0233-00000436
• Rebecca Liwerant is identified in the Belgium, Antwerp Police Immigration Index, 1840-1930 (Ancestry.com 2014) as being in Antwerp Belgium, but the dates are not specified.
• Identified as wife of Meinhold Muller in Ancestry.com. Sweden, Indexed Marriage Records, 1860-1947 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2017.
• In 1938, Rebecka Liwerant lived at the Pauline Stiftung in Laufgraben 27, Hamburg. She attended the Israelitischen Töchterschule im Schulhaus Karolinenstraße. As daughter of Polish Jews, Rebecka was not a German subject and was rounded up in late October 1938 and taken to the German/Polish border. She reunited with her mother and brother, Bernhardt, in Lodz.
• Rebecka Liwerant was deported to Litzmannstadt Ghetto in 1940. She lived in various addresses, Piotrk /8, Apr 3 in Block 52A, Mühlgasse 44. Source: United States Holocaust Memorial Museum; Washington, DC; Poland, Lódz Ghetto Register Books, 1939-1944; Record Groups: RG-15.083M; File Name: rg-15_083m_0233-00000436
• Rebecka survived the Holocaust/World War II. In fall 1945 she arrived in Sweden, where she met and married Meinhold Müller.