"American Girls" series for boys?

I feel like such a bad lib asst.! I had a parent ask me about a series her friend had recommended, of a "boy version" of the popular American Girl series books. I'd never heard anything about this type of book being offered, and a quick peruse of the American Girls site indicated nothing of the sort. I know there are other historical fiction beginning chapter books such as the "I Am America" series, but I haven't heard anything about an "American Girls" for boys and wasn't able to come up with anything. Anyone heard anything about this? Or was this patron's friend just confused?