Was anybody ever denied an Oscar or other award because of the Hollywood blacklist?

Hundreds of Hollywood producers, actors, directors, singers, dancers, voice-actors, choreographers, and screenwriters were blacklisted because of the House Un-American Activities Committee hearings in the 1950's. They were accused of being members of the Communist Party or being sympathetic to communism. Many accusations were unfounded or completely false.

Sometimes mere opposition to nuclear testing or support for the Civil Rights Movement was enough to warrant suspicion.

Many of the accused left show business completely or went abroad to make films in other countries. Others were hired by sympathetic Hollywood producers and directors who opposed the hearings.

When sympathetic Hollywood producers and directors hired blacklisted screenwriters, they sometimes put a fictitious name or the name of somebody else on the credits so the film could still be shown in the US. They also hired producers and directors as co-producers or co-directors and released the film with a different name on the credits.

One example would be Hugo Butler who was blacklisted along with his wife, Jean Rouverol. He and his wife left the US for Mexico where they wrote several screenplays under various pseudonyms, and then sold the screenplays to Hollywood studios.

Was any blacklisted person ever denied an Oscar or other award because their name was not on the film credits? (i.e. - If a non-blacklisted friend's name was on the screenplay, and that friend won an Oscar, then the true author of the screenplay did not receive the recognition he or she deserved.)

I am asking not just about Oscars, but any award for movies or TV.

Although my question uses two screenwriters as examples, I also want to know about singers, producers, directors, or any other role in movie or TV making.