According to Georgia Shay Williamson this is owned by the McArthur family. Other comments suggest there is another house known as the McArthur House near the railroad tracks.
McArthur House, McGregor
Vanishing Georgia: Photographs by Brian Brown
Since 2008. A visual survey of Georgia's historic architecture and culture. 8,000 locations. 27,000 images.
Vanishing Georgia: Photographs by Brian Brown 
The other McArthur house is white and is still liveable. Each year 75-100 descendants gather there for Thanksgiving
This house and the store next to it belong to the McArthur family. I attend the McGregor church that sits beside it. These beautiful buildings are what made me so in love with history.
I would live and love here.