Martin Lewis Prescott
The Prescotts appear to have purchased the barn around 1903, when they had a ranch. Since that time, the aboveground segment of the barn has mostly been used for the storage of Prescott clippings and artifacts from that time.
Events of Life Is Strange
Max and Chloe visit the barn during Episode 4: Dark Room. Max explores the barn and is eventually able to break open the hatch leading to the Dark Room with Chloe's help.