Questions about indentured servants in the Southern colonies

[YoungDemCA]

Hi all, this is my first post in this group!

I have been reading a little about how many of the European immigrants who came to the American colonies (particularly the Southern colonies) in the 1600s and 1700s were indentured servants.

In the Southern colonies, what were the main ancestries of these poor servants? Furthermore, to what extent is the modern population of Southern whites descended from these servants? Finally, what were the main differences between servants and free whites, in terms of culture (if there were any, of course).

Thanks!