Following the death of a relative, we found a Huguenot family bible, with details of Jean Fabre who married Magdellenne Caszannuvé on 6 Feb 1732 in the Episcopal Church of Rotterdam (l'eglise Ecopoise de Rotterdam).

Their children were:
Marie Magdellenne (b.21 Nov 1732)
Jean Jacques (b.11 Nov 1733)
Isaac (b.1 Feb 1735)
Susane (b.24 Jun 1736)

Magdellenne died in London 2 Mar 1741.

I'm trying to find any information I can about them, and eventually bridge the gap between them and Wilhelm Mehl (1807-1862), William Theodore Mehl (1837(Stuttgart)-1895(London)), or Alexandrin Maria DeNieures (1847(Paris)-1899(London)).