She was the daughter of a mining engineer. Her mother gave her the nickname Jinx" on the hope it would bring her good fortune. As a child in Chile, she was an athlete, winning the junior swimming championship at age 11. As an adult, she was an accomplished tennis player and played golf into her late 70s. A revolution in Chile forced her family to go to the United States where her father found work as an engineer in the Los Angeles water district. She graduated from Hollywood High School in 1935 and, being fluent in Spanish, found work at the age of 16 at Warner Bros in Spanish-language films. Paul Hesse, a fashion photographer for "American Magazine" was taken by her beauty and unusually tall height and started her modeling career. She appeared on the magazine's cover in August 1937 and went on to appear on the covers of more than 60 magazines in the later 1930s and 1940s, By 1941, she was the highest paid model in the U.S. and sold beer nationwide as the first Miss Rheingold. She continued to appear in films and, with Joan Davis and Ann Series, started what was planned as a series co-starring Jinx, Ann Savage, and Joan Davis that started with "Two Latins from Manhattan" (1941) and "Two Seniorittas from Chicago" (1943) but the series ended with two films. During World War II participated in USO tours. It was there that she met her future husband Tex McCrary. They later appeared together on radio and television.