Carrington's Murphy selected to Forbes' 30 Under 30

In just over a quarter century's worth of her life, Carrington's Maartje Murphy has learned, either by immersion or by practice, the nuts and bolts of international business.

Just over 2 1/2 years ago, Murphy set out to make her own legacy, creating a successful offshoot company, Duchessa Gelato, from her parents' dairy farm.

Her travels to establish that business took her to gelato's birthplace,...