According to the documentation given to me by his nephew, Daniel Isaac Alevy (in 1997), Saul Alevy passed away 27 Sep 1974 in Miami Beach, FL.
Daniel has since passed away as well, so we can not go back to him for confirmation and his data has been found to have errors. However, I've only found errors in his oldest ancestors where he has roughly estimated vitals. All immediate family data has been correct to date and I've been able to verify from other sources.
However, I have no secondary sources for Saul's death date. On the other hand, I have a burial location of Farmingdale, Nassau Co., New York, USA, also from Daniel.
Since he tended to visit grave sites, I'm inclined to think his data is correct rather than what is currently contained on this profile.
Does anyone else have any other sources?