This is all very interesting. These are all names that I remember hearing when I lived in Jersey City, especially Steven Nestor, the police chief. I used to ask my father, James Patrick Nestor, if we were related, and he swore not. However, he told me that if I ever got stopped by the cops to say that Uncle Steven would be very unhappy if I were to be given a ticket!
There is still a Pat Nestor living in Jersey City (near Lincoln Park entrance, by the Blvd). My father came from Co. Mayo in the mid 20's, so you may be seeing his name in census or directory data in the JC area - he did live on Bayview Avenue at one time. We lived in the Greenville area until the mid '80's, so we know the area well.
Rosemary - did your mother work at the TCNJ Greenville branch? She knows me. I didn't know you had Nestors in your lineage.
My family tree can be found at www.goecities.com/nestorfamily2002