The Major John C. Hutto Camp, a local Sons of Confederate Veterans group, will be holding a ceremony at 2:30 p.m. at the home, which is located on Whitehouse Road in Jasper.
Some Confederate reenactors are also expected to camp out on the property Saturday night.
No admission will be charged.
“I think it (the open house) is going to be a great thing because it’s history right here in our backdoor,” said Harold Daniel, a member of the Hutto Camp.
Fellow Georgia native William Wallace “Carpenter” Wilson built the home for Long in 1859. It was named “The First White House” because it was the first painted house in Walker County.
Long, who is credited with founding Cordova, built another home in Jasper that has now burned and one in Cordova that has been inhabitable since the April 27, 2011, tornadoes.
“It was a tenant house for farmers for many years. Some people will remember their grandparents living in or near that house while farming the land,” Daniel said.
The Long home was purchased by Kenneth and Blanche Sherer in 1980.
Blanche Sherer, who was then working at a local bank, informed her husband when she heard the members of the Long family were interested in selling the “White House.”
“It was about to fall down, but we came down and looked at it and we saw the potential,” Blanche Sherer said.
The Sherers, who both grew up just down the road from the home, acquired the house and 19 of the original 1,500 acres.
After Kenneth Sherer had a heart attack, family and friends took over the renovation project so the couple could move in within several months of the purchase.
Sunday will be the first time that the house will be open to the public.
“People thought we were crazy when we bought this house, but it would have been gone by now if we hadn’t bought it and fixed it up,” Blanche Sherer said.