I have some info on the Speeds, etc.
William Calvin Speed (b 1837, Rabun Co.), was the son of
Terrill Speed (b 1811, SC, d 1-7-1877, Rabun Co.) and
Jerusha Pelfrey (b 1812, NC, d Rabun Co.)
My father's research states that: "The Speeds came into Rabun County before 1840 and settled on Hale Ridge where they stayed for many years. "
Contact me if you want more info.