The Genuine Article

No delicate hot-house fashion illustrations here, we are assured. This is a real  man,  an intense  man, cutting loose with a real,  gutsy primal bellow! And, he's wearing a real  hat, one that's just as intense as he is!

According to this ad from a 1910 issue of Men's Wear Semi Monthly, Eagle Brand Caps would include a copy of the "forceful and attractive" oil painting, with every order of a few dozen "Gaylor" hats. But, who is this rough-and-tumble force of nature featured in the painting? What kind of man was chosen to be a visual representation of manliness, confidence and indomitable spirit? A closer look at the advertisement reveals the painting's title, and the subject's occupation: