Alva Review-Courier -

SAN MARINO, Calif. (AP) — History scholars are getting a new trove of priceless presidential papers to pore over at Southern California's Huntington Library, Art Museum and Botanical Gardens.

The Huntington announced Thursday that 340 artifacts focusing on presidential administrations from the 18th to the 20th centuries are being donated by L. Dennis and Susan R. Shapiro from their personal collection.

Among the papers are numerous letters between the nation's second and sixth presidents, John Adams and his son, John Quincy Adams. Other papers include letters from first ladies Dolley Madison a...