Aaltje Swaab was a daughter of Levie Swaab and Mietje de Roode. She married 27 Februari 1902 in Rotterdam Barend Fierlier, a son of Nathan Hartog Fierlier and Batje van der Kruk. The couple had four children, namely the twin Nico and Leon and two daughters, who both have survived the Holocaust.
Barend Fierlier passed away on 19 August 1934, and Aaltje Swaab moved 19 Augustus 1937 to Hillegersbe…