To arrive to palestine, Hasja recieved a certificate thanks to "marriage on papaer" for this porpuse, to
Ben-zion Keshet (Katzenelenbogen)
In her biogrophy elsewhere it's written that she have staied in europe until 1940, and then escaped to Palestine.
https://www.ornaverum.org/family/kaulback-bill/fenja/part-2.html