Ha! Finally a question I know the answer to without researching and was actually considering submitting as a question myself!
"Ollie" Hardy, of comic acting note (Laurel and Hardy,) was the son of Oliver Hardy (b 5 Dec 1841) who enlisted as a Private in Co K 16th Georgia Infantry on July 25, 1861 in Columbia County, GA for "the war." The elder Hardy was promoted to Sergeant and received a gunshot wound in the "gluteus maximus buttox" at the battle of Sharpsburg on September 17, 1862. He was furloughed for recovery and later served as a Sub Enrolling officer in Columbia County, GA.
Norvell Hardy (aka Ollie) was born Jan 18, 1892 and was the only child of Hardy's third marriage (to Emily Norvell Tant). When Norvell (aka Ollie) was 18 years old, he assumed the first name "Oliver" in honor of his late father, who had died Nov 22, 1892, soon after his birth.