If you like fantasy or science fiction...
George Washington's Socks by Elvira Woodruff. In the midst of a backyard camp out, ten-year-old Matt and four other children find themselves transported back into the time of George Washington and the American Revolution, where they begin to live out American history firsthand and learn the sober realities of war.
Half Magic by Edward Eager. A magical coin grants the children half of whatever they wish for, with unexpected consequences.
Joining the Boston Tea Party by Diane Stanley. With the help of their grandmother's hat, a pair of twins journey back in time to the Boston Tea Party.
Caroline S. Parr