Jenny is accustomed to dealing with weirdness and mysterious circumstances thanks to getting to know Claire, but immediately believing that a young woman is her brother’s daughter that nobody thought to mention to her wouldn’t be easy.
One of those names would undoubtedly be Jenny Murray.
Brianna’s American accent probably wouldn’t help.
As Brianna’s aunt and somebody Claire considered a friend, Jenny would be a natural person for Bree to seek out, and the two do have some memorable interactions on the pages of Drums of Autumn.