Looking for Belgian family

[PPS]

I have been asked if anyone could possibly recognise this family name, location uncertain but thought to be Belgium just prior to, or shortly after, WW2.

The family name is Verbist or Virbist, and the first names in question are:-

Pharailda Verbist/Virbist - 15 years old
Clementina Verbist/Virbist - 11 years old
Louisa Verbist/Virbist - 17 years old

Anybody recognise the names?

Paul.