These excellent books for girls 8-13 each feature a resourceful and courageous heroine facing both everyday problems and issues related to the history of her time. I recommend these as a great way to introduce young readers to women's history. Boxed sets: see links on this page for descriptions of the individual books.
The Smuggler's Treasure (1812), Hoofbeats of Danger (1860) and The Night Flyers (1918).
Voices at Whisper Bend (1942), Secrets on 26th Street (1914) and Mystery of the Dark Tower (1928).
Trouble at Fort Lapointe (1732), Under Copp's Hill (1908) and Watcher in the Piney Woods (1865).
Shadows in the Glasshouse (1621), The Minstrel's Melody (1904) and Riddle of the Prairie Bride (1878).