Is it set in modern day?

Genevieve (Evie?)
Katharine/Kate
Clare
Susan
Lucinda
Carlisle

Mmm Upper middle class sounding surnames...no idea..for some reason I'm thinking Mc or St something, or maybe hyphenated names?

McClure
St. Clair
St. James
Mander-Jones

I like the St. names the best though, they seem to go with long and short first names too.