Hi Kenneth and Tasos,
I just checked the contributor's website and it seems that the sounds come from a collection called the 'O' Connor Crazies'. It seems that the copyright holder is the person behind 'Radio Mall' that has contributed them to the site.
Therefore, they are not the Hanna-Barbera sounds and they are legal!








I thought I recognised them from the Hanna-Barbera or some other cartoon library (that I don't have access to to check):
11118701.WAV
11118101.WAV
11115901.WAV
11112001.WAV
11111801.WAV