His petition must be accompanied by the affidavits of precisely _two_ witnesses, who must accompany him personally when he files his petition, and must accompany him again, ninety days or more later, when his case comes before the court for hearing. _Two, only two, and the same two._ Only in case one of them dies, or moves out of the jurisdiction of the court, is he allowed to substitute. Each witness must be a native or naturalized citizen of the United States, and must swear to that fact. And each must swear that he has known the petitioner during the whole period of five years of residence within the state, or of one year in the state if he lived previously in other states, and satisfy the court that he has seen the petitioner frequently enough to know that his residence has been continuous and his conduct such as to warrant his admission to citizenship. Some judges require the witnesses to have seen the petitioner virtually every day, “constantly, as a neighbor”; “at least once a week,” for five years. The examination of the witnesses is frequently more severe, if possible, than that of the petitioner himself; for the law requires them to be “credible.” If a witness can be shown by the naturalization examiner to be of dubious moral character, the court probably will deny the petition verified by him, and leave the petitioner with only one witness. He must have two, and he cannot substitute a better one! In a state which has allowed aliens to vote upon their declaration of intention, innumerable foreign-born persons have in good faith believed themselves to be citizens. If such a person appears as a witness for a petitioner, the petition is denied--properly enough, except that the petitioner might easily produce a substitute who could not be objected to; but no, he must have not only exactly two, but _the same_ two, throughout the proceeding. Or, if one or both of these particular witnesses turn out to be honestly mistaken in thinking they have known the petitioner for the whole five years; if, for example, it turns out that they could not have known him more than four years and nine months--the petition is denied; “incompetent witnesses.” In the fiscal year ending June 30, 1918, more than 2,300 petitions were denied for this cause, and it is safe to say that, in a very large majority of the cases, the witnesses were acting in perfect good faith. The practice cuts very close. _In re_ Welch (159 Fed., 1014), decided in 1908, reports a case in which it was shown that a witness had not known the petitioner for five years at the time of the filing of the petition, but had known him for five years by the time the hearing was had. In that case the court permitted amendment of the date of the petition, but required a fresh posting.