Chefs to Watch 2016: Marc Sheehan, Loyal Nine, Cambridge, Mass.

Marc Sheehan always knew he wanted to cook. But it wasn’t until college—after he ditched his planned economics major and followed his passions for history and food—that his cooking style began to take shape.

“I was reading a lot about what people actually ate in this area even 100 years ago, and it wasn’t my tradition,” says Sheehan, a Boston-area native whose family has been entrenched in the area for generations...