Here I was thinking Hemingway was an opposite to the Sylvia Plath strain of literary creation, the boom-and-bust, burn-it-all school. He was diligent and measured, conservative and careful, surely, and lived out a long, grumpy old age filled with arrogance and pride—for sure.

No. According to Wikipedia, "Hemingway is believed to have purchased the weapon he used to commit suicide at Abercrombie & Fitch, which was then an elite excursion goods retailer and firearm supplier."