Good thinking-—off the top of my head......that was actress Rochelle Hudson and her husband posing as tourists who found the Nazi training camps in Mexico.
In 1939 Rochelle Hudson married Harold Thompson, head of the Storyline Department at Disney Studios.
She assisted Thompson, who was doing espionage work in Mexico as a civilian during World War II.
They posed as a vacationing couple to various parts of Mexico, to detect if there was any German activity in these areas.
One of their more successful vacations uncovered a supply of high test aviation gas hidden by German agents in Baja California.
Thanks.
They were the couple, who apparently found barrels of Air Plane fuel stashed by Nazis in Mexico for Japanese planes to attack the USA.