It is more difficult to research women's lives than it is men's. There has always been a tendency - race notwithstanding - to believe that women's contributions have been less important than men's contributions because women are usually less public people.

I think that one of the ways that Americans will come to want to look at history is by looking at their own families' histories, and how those stories relate to the larger picture of American history. Then it is no longer abstract. Then it becomes a story that really means something to us as individuals.

When we look at women, we have to look at the significance of their work in a different way from the way we look at it with men. Women have more often worked within the home, working equally as hard, I would argue, but not always out there where they're counted, not always up there in the labor unions, certainly not in leadership positions.

For all kinds of reasons, it is more difficult to track women's lives. Women's words have simply been considered less important, so they have been preserved less often.

It is important for us to remember that black people have been patriotic and have fought for that American dream in every American war.

Ultimately a historian has to put together a cohesive work. That doesn't mean that your curiosity is ever totally satisfied.

You have to decide what is extraneous and what is central. There is always more to tell. If you want to have a finished product, at some point you have to say enough.