I don't know if my photo on the beach from 1992 counts, but it is pretty old.
Seriously, I have googled this before and never came up with very much. I did however, come across a fantastic chronology of Hilton Head from prehistoric times until present day. There is a lot of important dates and names associated with Hilton Head. It is lean on details, but the timetable is well done. I've referred to it multiple times when looking up HHI history. For intstance; Did you know that Hilton Head didn't even get electrical service until the 1950's? Pretty hard to believe, right?
Here's the link (below) and I hope you enjoy it as much as I did.