Jean Rouverol was a  part-time actress (from 1934-1938)  and writer who fled to Mexico in when the HUAC tried to serve them with subpoenas and hid there for 13 years.  
She was never blacklisted. She nor her husband were never branded “subversives and dangerous revolutionaries.”
If they weren't spies, they really had no reason to run.
They didn’t suffer much in Mexico. In fact, she sold five screen plays to Hollywood when she was in self-exile. Her husband, a Canadian, sold seven scripts to Hollywood while in self-exile.  
Rouverol was the daughter of playwright Aurania Rouverol, who created the all American boy next door, Andy Hardy. She married screen writer Hugo Butler in 1940 and had four children. In 1943, the couple joined the American communist party. Rouverol died on March 24, 2017 at the age of 100.