Nakomelingen
Lambertina van Helvoort (1889–1971)
- 1 Lambertina van Helvoort (1889–1971) m. Martinus Westelaken
- 1.1 Marie Westelaken (1920–)
- 1.2 Jo Westelaken (1921–)
- 1.3 An Westelaken (1922–)
- 1.4 Tiny Westelaken (1924–)
- 1.5 Toon Westelaken (1925–)
- 1.6 Living
- 1.7 Alberta Maria Westelaken (1928–1929)
- 1.8 Living