This is believed to be a photo of Cornelius "Neal" Pierce (b. 1874), brother of N. B. "Bonie" Pierce. Written on back of the photo is "June the 1 1901 [or perhaps 1907]."
Neal is wearing what appears to be a tweed suit, waistcoat and decorative bowtie. He looks as though he dressed up for a special occassion, perhaps a wedding or some other event.
The photographer's imprint is "B. S. Partin, Photographer, Mobile, Ala." Note that the photo was taken outdoors.
Partin, or his agents, must have traveled extensively in the rural corners where Alabama and Mississippi touch. The Mississippi Department of Archives has posted other Partin photos on Flickr of the Daisy School community in Jackson County, Mississippi, about 1900.
Do you have any information on the photographer B. S. Partin, his studio and his work?