in the old mafia guard original 5 families all the members were traced back to golfo de castellemare ,castle by the gulf of sicily,,,both families need to be traced there and most early gangsters were immigrants so that was easy in itself to do,,as the mob got more americanized inducted members could have roots from napoli ,calabria,sicily,and by 50's or so there were less italian speaking mobsters,,,'zips or mustache petes'as the american mob referred to is when a true sicilan would come over to do dirty work for a family that needed certain jobs,time went on into newer times when an italian surname and 50 pct could get in ,,example was john gotti jr who's father married women who had italian surname as well but had some russian blood many considered jewish and even though junior served at boss many older guard referred to his mothers side tainted.