New arrivals. So named because they are always wearing the same set of rags. Generally not trusted by the locals until they establish themselves.
Short for stranded. Descendants of prisoners who were put ashore after the exile program was put into place.
Descendants of prisoners who were locked in the stone prisons on the island while the Empire was still directly operating the island. Considered to be a nobility of sorts.
Descendants of the first prisoners who were originally used as slave labor by the researchers and builders on the island.