Matty Ianniello, served the Genoveses for atleast 50 years.

Carmine Persico has been serving those Colombo's since the early 50's.

Richard Biordo served the Genovese's and was a Capo in the NJ faction. He served for at least 50 years before dying in the mid 1980's.

I believe Salvatore Santoro of the Lucchese's served his family at least 50 years before being put away in the Commission Trial in 1985.