The site is part of Timucuan Ecological and Historic Preserve in Jacksonville. It is not simply a house museum: the relationships among the waterfront, work spaces, residence and quarters are central evidence. Looking only at the planter's home would leave the people whose labor produced the estate's wealth at the edge of the story.
The name identifies one ownership period, not the island's entire past. NPS places the Kingsley family's arrival in 1814 within a much longer history of Indigenous occupation, colonial conflict and plantation agriculture. Florida's transition from Spanish rule to United States territory in 1821 changed the legal environment for free Black people without making Spanish slavery benign.
Anna's position challenges easy categories, but complexity is not an excuse to avoid judgment. Someone could have survived forced migration and enslavement, exercised considerable agency after manumission and also exploited other people. Those facts must be considered together. Her life does not make the plantation an exception to the violence of slavery.