One good historical fiction book for young readers is 'Sarah, Plain and Tall' by Patricia MacLachlan. It's set in the late 19th century on the prairie and tells the story of a family waiting for a new mother. 'The Sign of the Beaver' by Elizabeth George Speare is also great. It takes place in the 18th century Maine wilderness and shows the relationship between a white boy and a Native American. And 'Bud, Not Buddy' by Christopher Paul Curtis, which is set during the Great Depression and follows a young boy's journey to find his father.
For young readers, 'The Secret of the Old Clock' by Carolyn Keene is a great historical fiction. It's part of the Nancy Drew series and is set in the 1930s. Another one is 'Johnny Tremain' by Esther Forbes. It takes place during the American Revolution and follows the adventures of a young apprentice. 'Island of the Blue Dolphins' by Scott O'Dell is also good. It's based on the true story of a girl left alone on an island off the California coast in the 19th century.