The plaque documents the story of Juana Maria.
Juana Maria (died October 19, 1853), better known to history as the Lone Woman of San Nicolas Island (her Indian name is unknown), was a Native American woman who was the last surviving member of her tribe, the Nicoleño. She lived alone on San Nicolas Island off the coast of California from 1835 until her discovery in 1853. Scott O'Dell's award-winning children's novel Island of the Blue Dolphins (1960) was inspired by her story.