Historians did some tests and discovered that it’s made from some of the same material found at the Castillo de San Marcos.

Christopher White intended to keep the last-standing slave cabin in his family, but his brothers and sisters had other plans.

They sold it to neighbors for $90,000.

"I didn't know anything about the sale until they signed papers with my siblings," White said.

Court documents show White had to be out by Wednesday. He has nowhere to go.

So, what will happen to the house and slave cabin located behind it? Action News went next door to the buyer to find out.

The new owners didn't want to give an official comment, but said they'll work with the city on renovations and preservation.

"I think we're going to try to keep it intact as best we can,” White said.

White says that's all he can hope for. His parents were integral in the Civil Rights Movement and his brother was one of the St. Augustine Four.

Even though he feels duped, he wants future generations to know their roots.

"That's a part of not only black history, but American history," White said.

The entire Lincolnville neighborhood where the cabin is located is on the National Register of Historic Places.

Lincolnville was the first freed black community in the United States.