Under the Surrogate’s Court Procedure Act, necessary parties (specifically listed in the statute) must be served with a Citation. Other persons in the will who are not entitled to receive a Citation must be mailed a notice of probate. When probating a will in New York, necessary parties should be properly served with the Citation. The Court will not have jurisdiction over a necessary party that was not cited, and cannot make the probate decree binding on that party.
I am a bit confused by your question, and would need additional information about the “major person” for a more comprehensive answer. You should speak to a New York estate attorney.
Please note that laws vary state to state. The legal advice provided in the answers below may not apply to your case.