At its founding in 1904, the international Explorers Club stated clearly that membership was “limited absolutely to men,” a fraternity of the hearty who blazed new routes through “the open and the wild places of the earth.”

Inductees include Roald Amundsen, leader of the first team to reach the South Pole; Sir Edmund Hillary and Tenzig Norgay of Mount Everest fame; and, in 1956, Frank Schreider, who with his wife drove from the Arctic Circle to the tip of South America in an amphibious jeep. They were the first people to travel the length of the Americas in an amphibious vehicle.

Frank and Helen Schreider went on to indulge their wanderlust in India, Africa, the Middle East and the Amazon Basin, making documentary films and writing of their lengthy journeys in books and in articles for National Geographic magazine.

It wasn’t until 2015 — 59 years after her husband — that Ms. Schreider was belatedly inducted into the Explorers Club herself, once it had dropped its gender barrier. Faanya Rose, the club’s first woman president, told her: “You went exploring knowing there was no accolade for women. It was just the pure passion and the pure curiosity.”

Ms. Schreider, a former art student who always traveled with drawing pad and colored pencils to record her wide-ranging explorations, died on Feb. 6 in Santa Rosa, Calif. She was 98.

A niece, Camille Armstrong, said the cause was a stroke.