Dr. Neil Rosenstein was born in Cape Town, South Africa. He studied medicine at the University of Cape Town and interned in Israel. He specialized in surgery at the Mt. Sinai hospitals in Cleveland and New York City, and the University of Medicine and Dentistry in Newark, NJ. He maintained a private practice as a general surgeon in New Jersey for over 30 years.

Dr. Rosenstein has accumulated a vast matrix of material on Jewish genealogy, especially in the field of rabbinical dynasties, and is the author of many works on Jewish Genealogy, his magnum opus being The Unbroken Chain. Other noted works include Saul Wahl, The Grandees of New Jersey, The Lurie Legacy: The House of Davidic Royal Descent, Avnei Zikaron (Stones of Remembrance), and The Gaon of Vilna and his Cousinhood, and Latter Day Leaders, Sages and Scholars.

Dr. Rosenstein founded the Jewish Genealogical Society, Inc. (New York) in 1977, and is also founder and director of the Computer Center for Jewish Genealogy. In addition, he is contributor of articles to various Jewish genealogical publications and The Jewish Press. He lectures frequently and has spoken many times to various Jewish genealogical societies in the United States and abroad, as well as at the International Seminars for Jewish Genealogy and the annual National Summer Seminars. His biography is included in Who’s Who in World Jewry (1987) and is listed in Marquis’ Who’s Who in America (from 1997 on).