Helena Catharina Maria KNOOPS
- Father: Johannes Carel Antonius KNOOPS
- Mother: Maria Anna Mathilda HOHLMANS
- Birth: 15 Aug 1878, Rotterdam, Zuid-Holland, Nederland
- Death: 26 Apr 1879, Delfshaven, Zuid-Holland, Nederland
Ancestors of Helena Catharina Maria KNOOPS
/-Johannes KNOOPS
/-Johannes KNOOPS
| \-Elisabeth Josepha HEKKING
/-Johannes Carel Antonius KNOOPS
| \-Helena DOON
Helena Catharina Maria KNOOPS
\-Maria Anna Mathilda HOHLMANS