Jamie McPartland and Peter Oviatt with their daughter, Oksana, and dog, Nino, near their new home in in Portland, Ore. Dan Cronin for The New York Times

Jamie McPartland and Peter Oviatt met 23 years ago in New York City, though neither was from the area. She had come from California, he from Ohio, and they found in each other a similar yen for travel and adventure.