Leo Swaab and Elisabeth van Dam-Kloots married on 01-8-1928.
From this marriage Sientje Swaab was born
This marriage ended with a divorce at 16-11-1934 .
Leo Swaab then married Maria Joanna Emma Swaab-Goovaerts
From this marriage Alexander Karel Swaab was born.
Elisabeth Kloots married on 18-9-1935 with Louis van Dam
Source: Wiewaswie and Alexander Karel Swaab