In the late 19th and the first half of the 20th century there were some Chrosziels or Chrosciels in Groß Steinort, two of which were wheelwrights. Even until 1945, the family of a wheelwright Chrosziel still lived there. Whether and how Bertha was related to these Chrosziels remains to be seen.
 https://ofb.genealogy.net/namelist.php?ofb=rosengarten&nachname=hrosziel&modus=&lang=de https://ofb.genealogy.net/namelist.php?nachname=Chrosciel&ofb=rosengarten&modus=&lang=de
 Bundesarchiv Lastenausgleichsarchiv Bayreuth, OstDok 3/31, Bl. 72, 115.