Regina is een dochter van Heiman Druijf en Klaartje van der Ziel. Ze trouwde 19 juni 1913 met Gustav Müller (23 jaar, winkelbediende van beroep), zoon van Isaak Müller en Lea Meijerhoff.
Bron wiewaswie.nl (huwelijk Regina Druijf).
The Leiden police commissioner requested that Gustav Müller, a shopkeeper, and his children Edith and Hans, residing in Leiden, be located detained and brought to trial. They were suspected of having changed their place of residence without the required authorization. Requests that Gustav Müller's w…