Books with Social Studies curriculum connections (elementary)

Does anyone have suggestions for children's books (picture books or chapter books) that have social studies theme / curriculum connections for teaching social studies? Two that I've recently discovered are Naming Liberty by Jane Yolen and Freedom Summer by Deborah Wiles.

There are a lot! Look at the Newbery Award winners and almost all of them fit in the Social Studies Curriculum somewhere. Could you be a little more specific: what age group, what subject, how are you using them.

I have the most amazing find but are non-fiction. My kids can't get enough of them. They are the You Choose series. They are choose your own historical adventure. They take real historical times in history (underground railroad, civil war, titanic, dust bowl, etc). The books are then set up like a choose your own adventure where you have three choices of being actual real life people during that time and what would you do. For example on the underground railroad you could be a runaway slave, a person who helped a slave on the railroad, or a slave bounty hunter. Reading the slave bounty hunter offered a whole new insight to that time. They have amazing pictures and graphics at well. Best find of the year!

I was thinking historical fiction, or even interesting nonfiction about our nation's history for grades 2-5.

thanks, wonderlust! I'm going to have to check out the You Choose series. I've never heard of them but they sound great!

Fifth grade typically deals with the start of our nation. I read Johnny Tremain to the class and truthfully they really enjoyed it. There was a large amount of specific vocabulary that required research as a group or just my explanation. I think that older kids could read it independently, however, it does not fit their curriculum until 9th grade again.
For younger kids, Boy At War and Boy No More, are awesome for looking at Pearl Harbor. My students loved those.