He--" "A Caesar ?" queried Gavin, in real perplexity.
"That's the name the Floridian fishermen give to the family who live on Caesar's Estuary," she explained, almost impatiently.

"The inlet that runs up into the mangroves, south of Caesar's Rock and Caesar's Creek.

Caesar was an oldtime pirate, you know.

These people claim to be descended from him, and they claim squatter's rights on a tract of marsh-and-mangrove land down there.

They call themselves all one family, but it is more like a clan, Black Caesar's clan.
They have intermarried and others have joined them.