tacoma works with me, that's no problem! i like the idea of them being a mishmash of kids from different mothers, so i can see bianca spending a lot of time over at their grandmother's while her mom worked. i think she would have started coming around a lot more when she was around 5 or so, since her mom probably went back to work. i'm also thinking bianca probably took off at 18 and married the first guy who asked her, staying in seattle and going to school before her marriage broke up and she came back to portland and got in touch with her half-siblings. something like that!