Yes Pmac, the husband of his cousin, where he hid out while on the lam, a man named Fred DeChristopher testified about that:

''An informer testified yesterday that Carmine Persico told him that he had voted against killing Carmine Galante, a Mafia boss who was shot to death in 1979. The informer, Fred DeChristopher, was an insurance salesman married to Mr. Persico's cousin.''

Link to the complete article: http://www.nytimes.com/1986/10/03/nyregi...-testifies.html