What follows is an opinion from a United States Court of Appeals.
Intervenors who participated as parties at the courts of appeals should be counted as either appellants or respondents when it can be determined whose position they supported. For example, if there were two plaintiffs who lost in district court, appealed, and were joined by four intervenors who also asked the court of appeals to reverse the district court, the number of appellants should be coded as six.
When coding the detailed nature of participants, use your personal knowledge about the participants, if you are completely confident of the accuracy of your knowledge, even if the specific information is not in the opinion. For example, if "IBM" is listed as the appellant it could be classified as "clearly national or international in scope" even if the opinion did not indicate the scope of the business. 

Your task concerns the first listed appellant. The nature of this litigant falls into the category "natural person (excludes persons named in their official capacity or who appear because of a role in a private organization)". Your task is to determine the citizenship of this litigant as indicated in the opinion.

Opinion:
UNITED STATES of America, Plaintiff-Appellee, v. Monroe VAUGHN, Defendant-Appellant.
No. 73-1722.
United States Court of Appeals, Sixth Circuit.
Argued April 1, 1974.
Decided May 3, 1974.
Donald M. Kresge, Ada, Ohio (Court-appointed), on brief, for defendant-appellant.
Frederick M. Coleman, U. S. Atty., Clarence B. Taylor, Asst. U. S. Atty., Cleveland, Ohio, on brief, for plaintiffappellee.
Before PHILLIPS, Chief Judge, and EDWARDS and PECK, Circuit Judges.
PER CURIAM.
Appellant was convicted after jury trial in the United States District Court for the Northern District of Ohio on a charge of possession of stolen mail matter, in violation of 18 U.S.C. § 1708 (1970).
The principal issue briefed and argued before us on this appeal concerns appellant’s claim that his refusal to sign a written waiver of his Miranda rights rendered inadmissible the product of any interrogation which had been conducted in relation to this case. It is conceded that the postal inspectors who interrogated appellant read him his full Miranda rights and there is nothing to contradict the District Judge’s ruling that his subsequent identification of himself and his subsequent answers to questions were voluntarily given.
The Fifth Circuit has held: “[Wjhen all the circumstances indicate that the defendant knew of his right to remain silent and intelligently waived that right, the refusal to sign a written waiver does not render a confession inadmissible.” United States v. Johnson, 455 F.2d 311, 314 (5th Cir. 1972). This language was recently quoted in support of this court’s refusal “to adopt . . . a narrow construction of Miranda” in a fact situation somewhat parallel to our instant case. Hill v. Whealon, 490 F.2d 629 (6th Cir. 1974). We now express agreement with the Fifth Circuit’s view that the refusal to sign a written waiver, standing alone, does not render inadmissible statements or evidence voluntarily given after full warnings.
As we read this record, there was ample evidence from which the jury could have concluded (beyond reasonable doubt) that appellant knowingly sought to cash a stolen welfare check made out to another party, and was caught red-handed in the act.
No other appellate issues of substance are presented and the judgment of conviction is affirmed.

Question: This question concerns the first listed appellant. The nature of this litigant falls into the category "natural person (excludes persons named in their official capacity or who appear because of a role in a private organization)". What is the citizenship of this litigant as indicated in the opinion?

Choices:
not ascertained
US citizen
alien

Answer: 0