I am trying to assist my wife in finding information on her grandparents. Her grandmother's maiden name was Maria Ruggiero who came to New Jersey ca 1900 to join her husband Giuseppe Porreca who arrived in Newark in 1897. What interested me in your message is you mentioned the name Rosina Ruggiero. My wife's mother, the daughter of Giuseppe and Maria Ruggiero Porreca was named Rosina.Hoping the combination of surname and given names isn't a coincidence as we've had very little luck in obtaining information about them.
Maria Ruggiero Porreca died ca 1916 in childbirth. Her husband moved to Washington County, PA after her death where he died about 1928.
If you can supply any info regarding this family it will be greatly appreciated.