Hi Frances, You are correct about the wife getting derivative citizenship.  That was true up to 1922.  There are very, very  few naturalization records for women.  The records for the Court of Common Pleas before 1900 have the name of the party and his witness, their addresses, occupations, and signatures. I would look for them anyway. You could always research the witness.  Immigrants tended to live near other immigrants from the old country. Bobbi On Tue, Apr 21, 2015 at 03:12 PM, Frances Brunner via wrote: > I found two guys either of whom could be the great-great-great > grandfather I am looking for, among the Naturalization records from > the Court of Common Pleas in New York. > > One is more likely than the other to be my man, because he lived in > the neighborhood where he and his wife seem to have lived since coming > to New York. This having been said, you could walk between the two > addresses in ten or fifteen minutes. They're not so far apart. > I have three questions:One, what information would I get from the > file, assuming that the petition was filed in the local court, and not > Federal District Court? >   > Third, is it even worthwhile to research the wife, as I believe she > would have received derivative citizenship when her husband > naturalized? > Thanks,Frances