Appellant’s claims against the union5 stem from the latter’s alleged condonation of employee hazing (i. e., the box treatment discussed supra), and its alleged failure sufficiently to pursue the grievances filed by her against Ford.
These grievances began in October 1971 when appellant grieved that she had been denied a forklift operator’s license. She testified at trial that she had voluntarily abandoned this grievance and did not fault the union therefor.
On March 21, 1972, appellant grieved that the two lay-offs that she had experienced were the result of sexual discrimination. This grievance was prepared by the union president, presented to Ford’s warehouse foreman, and denied by him two days later. A union committee later agreed that this, grievance was without merit.
A third grievance was filed in early June 1972. Appellant had been promoted from stockhandler to “warehouseman” in May, but was demoted on June 2. She complained to the union and a grievance was filed. The processing of the grievance culminated in an arbitration award granting appellant the claimed position. (This grievance was concerned with an event which took place after the filing of suit but was included as an issue by pre-trial stipulation.)
Appellant sought injunctive relief against both Ford and the union, as well as back pay, compensatory seniority, and attorneys’ fees. The district court denied all relief, holding that appellant had failed to establish discrimination by a preponderance of the evidence on any ground alleged.6
By way of a preliminary summation, we find error only in the holding of nondiscrimination in the original hiring of appellant. The district court will be affirmed in all other respects.
II.
At the outset, it is important to delineate our standard of review for assessing the correctness of the district court’s nondiscrimination findings. Rule 52(a), F.R.Civ.P., lays down the “clearly erroneous” test for appellate review of district court findings of fact. Under this test, a finding is clearly erroneous “when although there is evidence to support it, the reviewing court on the entire evidence is left with the definite and firm conviction that a mistake has been committed” by the district court. United States v. United States Gypsum Co., 1948, 333 U.S. 364, 395, 68 S.Ct. 525, 542, 92 L.Ed. 746, 766. See also Chaney v. City of Galveston, 5 Cir., 1966, 368 F.2d 774, 776.
There exists, however, a significant distinction for the purpose of applying the clearly erroneous test between findings of subsidiary fact and findings of ultimate fact. See Galena Oaks Corp. v. Scofield, 5 Cir., 1954, 218 F.2d 217, 219-20. Finding a subsidiary fact involves the determination of an evidentiary or primary fact; finding an ultimate fact, on the other hand, “may involve the very basis on which judgment of fallible evidence is to be made.” Baumgartner v. United States, 1944, 322 U.S. 665, 671, 64 S.Ct. 1240, 1244, 88 L.Ed. 1525, 1529. Thus, for example, a finding of infringement of a patent is a finding of ultimate fact, see Industrial Instrument Corp. v. Foxboro Co., 5 Cir., 1962, 307 F.2d 783, 786 n. 2; as is a finding that a gain
5
By pre-trial stipulation, it became clear that the national union was being charged through the alleged conduct of the local. We refer to both as the “union”.
6
As to each alleged act of discrimination, appellant had the burden of establishing a prima facie case of discrimination. McDonnell Douglas Corp. v. Green, 1973, 411 U.S. 792, 802, 93 S.Ct. 1817, 36 L.Ed.2d 668, 677. Once a prima facie case was established, the burden “to articulate some legitimate, non-discriminatory reason” for their action shifted to the appellees. Id., 411 U.S. at 802, 93 S.Ct. at 1824, 36 L.Ed.2d at 678. See also Pond v. Braniff Airways, Inc., 5 Cir., 1974, 500 F.2d 161, 167. Upon rebuttal evidence being offered, the ultimate burden of persuasion by a preponderance of the evidence that discrimination had taken place fell upon appellant’s shoulders. Cf. Bittar v. Air Canada, 5 Cir., 1975, 512 F.2d 582, 582-83.