Smith-Douglass fertilizer plant.

This is where my dad worked when I was a kid. As he died when I was 14, it's the only place I ever remember him working - although he told me about other jobs. He used to plow fields, with a mule, 10 hours a day, for one dollar a day. He also worked with a mule, pulling logs out of the woods. That job was called "Mule Skinner." There's an old song called "Mule Skinner Blues." My dad's name was Blue. He was "Mule Skinner Blue." He worked in the installation and repair department at Sears Roebuck. And he worked at another fertilizer plant, in a nearby town.
This photo must have been taken early on, as I remember things a bit differently. There was another building beside the washroom (the small white structure on the right) and the sign out front seemed much larger than the one pictured here.
I grew up in that plant. I knew it inside and out. I can still remember the dust and the smells. I recall feeding the German Shepherd that guarded the back door of the office. I can remember walking across the platform at the front of the building with my dad. He was singing "May the Bird of Paradise Fly up Your Nose." Sometimes, when he shaved in the wash house, he'd let me "shave" at the sink next to him. (He'd give me a hand full of shaving cream and a razor with no blade.) At the back of the building, where the railroad tracks ran off into the woods, there was a trestle. We sometimes walked across it. It seemed magical - and scary. I saw my first fox by the trestle.
My sister thinks that may be my dad's car at the center of the photo. Could be.