Susie: I underestimate older women sometimes. I'm always interested when I meet an older woman to really talk to her and find out her story. I do this a lot now. I love going out with friends and their moms or their grandmas. I love hearing their stories and what was interesting to them at the time, what the obstacles were, what the challenges were for them, and what their views and ambitions were. I really was able to absorb that and use that information for this book by reading Amy and Fiona’s book Meet Miss Subways, which gives the history.