Christopher Alan Vaucher [is]
[[[a descendant] [of the [nth (generation)] generation] of [a cousin]] of James Vaucher, Rédacteur du Journal de Genève].
[indeed,]
Jean Pierre Etienne Vaucher
(1 [relationship link])
Sarah De Lom
(1 [relationship link])
[are] [at the same time]
[[grand-parents] of James Vaucher, Rédacteur du Journal de Genève]
[[ancestors (some)] [of the [nth (generation)] generation] of Christopher Alan Vaucher]