"Unless she changes it for the benefit of non-German speakers?"
Maybe-although I thought that it was only ever pronounced one way!
And as you say she's half German & living in England-where I thought that the pronounciation was with the "High" sound iyswim.
But apart from that...
How old are they all all supposed to be?
Margaret is 29, Helen 21 & Tibby 16 at the beginning.(according to SparkNotes!)
But the Wilcoxes?
If Paul is similar to Helen & Evie younger, is Charles similar/younger than Margaret?
Is Mrs Wilcox supposed to be a bit older than Henry & he married young, or is MM just too young (early 40s)?
Just realised that I put Hayley Attwood earlier & it's Atwell