I've come across a situation in which a man was naturalized in New York City in 1892 and married a widow with children in 1893. When one of the sons applied for a passport in 1911, he said he was naturalized under his step-father's papers. Would there have to be further papers filed in the courts for that to be true or was it standard procedure for step-children who were not present at the time of naturalization to be automatically "grandfathered" in?