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 gender of this litigant. Use names to classify the party's sex only if there is little ambiguity (e.g., the sex of "Chris" should be coded as "not ascertained").

Opinion:
James B. LATTA, Appellant, v. Hilbert S. SABIN, Appellee.
No. 17664.
United States Court of Appeals District of Columbia Circuit.
Argued Jan. 8, 1964.
Decided Feb. 20, 1964.
Mr. Earl H. Davis, Washington, D. C., with whom Mr. Donald S. Caruthers, Washington, D. C., was on the brief, for appellant.
Mr. J. Joseph Barse, Washington, D. C., with whom Messrs. H. Mason Welch and J. Harry Welch, Washington, D. C., were on the brief, for appellee. Mr. James A. Welch, Washington, D. C., also entered an appearance for appellee.
Before Danaher, Bastían and McGowan, Circuit Judges.
DANAHER, Circuit Judge.
The District Judge directed a verdict in favor of the appellee on the issue of negligence in a malpractice action. The appellant did not sustain his burden of proving that the surgeon had failed to exercise that degree of care and skill required by the standard of practice which the appellee was bound to afford to the appellant as his patient. The appellant’s claims as to breach of warranty and unauthorized operation were submitted to the jury pursuant to adequate instructions, adapted to the issues.
The jury returned a verdict in favor of the appellant awarding damages equal to the amount of the surgeon’s charge for his services. The award is now attacked, as grossly inadequate.
The jury might have decided that except for a comparatively minor phase of the surgery, the special damages claimed by appellant were actually attributable to a later operation by other surgeons. The jury might also have concluded that no credence could be placed in the appellant’s claim that the doctor had warranted a particular result. In any event, no special interrogatories had been submitted to the jury, and its general verdict is not without support in the record. The trial judge denied the appellant’s motion for a new trial. Our review of the record does not disclose such abuse of discretion as to require reversal.
We have examined other contentions of the appellant in respect of certain rulings on evidence as to which we find no error.
The judgment of the District Court is
Affirmed.
. Rodgers v. Lawson, 83 U.S.App.D.C. 281, 170 F.2d 157 (1948); and see Brown v. Keaveny, 117 U.S.App.D.C. -, 326 F.2d 660 (rehearing en banc denied).
. Hulett v. Brinson, 97 U.S.App.D.C. 139, 140, 229 F.2d 22, 23, cert. denied, 350 U.S. 1014, 76 S.Ct. 659, 100 L.Ed. 874 (1956) ; cf. Muldrow v. Daly, 117 U.S.App.D.C. -, -F.2d- (1964) ; Association of Western Railways v. Riss & Company, 112 U.S.App.D.C. 49, 52, 299 F.2d 133, 136, cert. denied, 370 U.S. 916, 82 S.Ct. 1555, 8 L.Ed.2d 498 (1962).

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 gender of this litigant?Use names to classify the party's sex only if there is little ambiguity.

Choices:
not ascertained
male - indication in opinion (e.g., use of masculine pronoun)
male - assumed because of name
female - indication in opinion of gender
female - assumed because of name

Answer: 2