We recently had the opportunity to explore Alcatraz while on a trip to San Fransisco, unfortunately it is the tourist season so we had quite a few people milling around so the EVP's were not many and only a  few were found after checking the recording's,  Below are the ones that I think are the best that we found on this trip.

It is best to use headphones while listening to EVP's

      

   

This is the only picture we got that  "may " be of anything.....we will let you decide