Based on research done by James Koger and Tangela Holcomb, Hans Jacob Koger, Sr who first settled in Pennsylvaniaand later moved to Virginia was the brother of Joseph Koger I who settled in South Carolina.Most researchers seem to believe that Joseph Kogerfirst settled at Purrysburg on the Savannah River.The site of Purrysburg is in modern Jasper County, SC.There are several lists showing the names of the settlers of Purrysburg, so far I have not come across Joseph Koger's name.
On Jauary 9, 1755, Joseph Koger submitted a petition to the SC Assembly seeking compensation for a rice pounding machine he had invented.Among his children was Joseph Koger, Jr who served in the American Revolution.Joseph Koger, Jrmarried Mary Cook and they had nine children including Joseph Koger III who moved to Mississippi and Mary Koger.
Mary Koger married Benjamin Risher, Jr. and they only had three children before Benjamin died due to a fall off a horse.Mary remarried, a gentleman named Newel,land died giving birth to Newell's son.The son died young and never married.Mary Koger Risher's son Joseph Koger Risher is my great great grandfather.
In her research, Tangela Holcomb indicates that Henry and John Koger, Jacob Koger, Sr's sons, did visit South Carolina.She indicates that on one of his trips, Henry Koger brought a small boy named William who is believed to have been the son of Jacob Koger, Jr.[Based on your posting, it sounds like you are descended from this William.}
Tangela Holcomb came across a letter written by Joseph Koger, Jr, it was written at South Carolina Scull Swamp[Skull Swamp is in Colleton County near Joseph Koger's burial site} and is addressed to Mr. John or Mr. Henry Koger living in Henry County, Virginia on Smith's River.
We can conclude that Jacob Koger, Sr. was the uncle of Joseph Koger.Jacob Koger, Jr. was Joseph's first cousin.
I should point out that the ancestor who I am refering to as Joseph Koger, Jr.[the Revolutionary War veteran] is refered to by others as Joseph Koger, Sr and his son who moved to Mississippi as Joseph Koger, Jr.
The graves of many of our ancestors have been lost, for the most part so have the sites of their homes.The Koger House in Grover, SC maybe the only remaining home of our Koger ancestors still standing.It would be a shame to lose it to negelect. Possibly some of Joseph Koger's kin may have ideas or can help preserving the old home.