It's also possible that her death was not widely publicized or that she was known by a different name in her personal life.
To find more information, you might try:
* Checking online archives: Look for news articles, obituaries, or other records from 1975.
* Searching for model directories: Some resources list models from past decades.
* Contacting modeling agencies: If you know which agencies she may have worked with, contacting them could provide information.
However, without more details, it is difficult to provide a definitive answer.