Short answers, pulled from the story.
Jefferson Davis was captured in Irwinville, Georgia in the early morning of the 10th of May 1865. Members of the First Wisconsin and Fourth Michigan Cavalry Regiments apprehended him at an encampment beside a creek bed a couple of miles from town. He had stopped the night before at a hotel owned by Doctor G.E. White.
Irwinville was founded in 1831 as the seat of the newly formed Irwin County, originally spelled "Irwinsville." It was named for Georgia governor Jared Irwin. The spelling was changed to Irwinville when the community was incorporated as a town in 1857.
The Jefferson Davis Memorial Historic Site in Irwinville marks the location where Confederate President Jefferson Davis was captured on the 10th of May 1865. The site includes a monument, a museum, picnic facilities, and hiking trails, and hosts frequent Civil War reenactments.
The Irwinville Farms Project was a Works Progress Administration program that operated between 1935 and 1939, aimed at reviving Irwinville after the Great Depression. It produced a cooperative cotton gin, the monument at the Jefferson Davis Memorial Historic Site, a school playground, a health clinic, and apartments in the converted old courthouse, and it organized the Irwinville Farmers basketball team.
Willis Jackson Bone was a local miller who operated a mill on Bone Pond near the Alapaha River in Irwinville. In mid-February 1865, he led a group of Southern Unionists, residents, and deserters in passing a resolution declaring the county's return to the Union, knocking down a militia lieutenant who protested. Bone was hanged near his own pond in late April 1865 after killing a justice of the peace named Jack Walker while bringing food to an escaped slave.
Irwinville served as the county seat of Irwin County for 76 years, from the county's formation in 1831 until the 17th of August 1907, when the seat was transferred to Ocilla. During that period, three courthouses were built in Irwinville.