Opinion.— Upon the first proposition the question presented is not whether the judgment in favor of Longstreet, Bradford & Go. against Rogers and Oliver, if it were before us upon appeal or writ of error, could be sustained. Authorities are not wanting that the omission of the names of parties, or of a fuller description of them, would, if the objection was properly made, prove fatal to it. But a judgment may be erroneous without being void. Thouvenin v. Rodriguez, 24 Tex., 479. The question here is, whether the judgment in this collateral action can be held void upon its face for want of jurisdiction or for uncertainty.

1. That the court had jurisdiction of the persons, Rogers and Oliver, is conclusively proven by the judgment itself. It recites that the defendants were duly cited, and this declaration cannot be contradicted by plea or proof. The fact of jurisdiction appearing on the record, it cannot be contradicted. Freeman on Judgments, sec. 131. Thus, though the return upon a summons against A. B. certities a service of such summons on C. B., and the judgment states that A. B. has been summoned, . . . the judgment will be impregnable to any collateral assault. Quivey v. Baker, 37 Cal., 465. And even where the record is silent upon the subject of notice, the judgment of a court of general jurisdiction will support itself, and can*60not be collaterally impeached or called in question because of any alleged want of jurisdiction over the parties to the decree. Lawler v. White, 27 Tex., 253. In Guilford v. Love, 49 Tex., 715, Roberts, C. J., quoting from 35 CaL, says: “It is of no consequence whether the jurisdiction of the court appears affirmatively or not on the judgment roll, for if it does not it will be conclusively presumed.”

2. Is the judgment void because rendered in favor of Longstreet, Bradford & Co. against Rogers and Oliver? In reply to this question the authorities are numerous. In Pate v. Bacon, 5 Munf., 219; Tottey v. Donald, 4 Munf., 430; Barnet v. Watson, 1 Wash., 372; Porter v. Cresson, 10 Serg. & Rawle, 457, it is held that a declaration by the firm name, without mentioning the names of the partners, is good after verdict. And these are none the less persuasive as authority because the parties appeared and pleaded without objecting to the want of the names. In McHance v. Huffman, judgment in favor of partners, by their partnership name, was held good. 3 Harring., 425. In Lutz & Co. v. Buffum, 14 Penn. St., 69, it was held that if a partnership is sued in the firm name, without naming its members, the defect is cured by verdict; and if a suit is in the firm name, the court will presume it, after verdict, to be the name of real persons. In Hyde v. Clapp, 43 Tex., 546, the judgment was in favor of Clapp & Co. Moore, J., says: “ If any question could be made as to the manner in which the plaintiff's are described in the judgment, . . . it could only be by a direct proceeding to this end, and not in a collateral action. It clearly appeared from the evidence, to which exceptions were taken, that there was a judgment to support the execution under which the land was sold. This being the case, it was certainly admissible, as tending to establish the title of the purchaser under the execution, while the judgment stood in force, though it appeared on its face to be erroneous and voidable.”

In Hays v. Yarbrough, 21 Tex., 488, where the petition *61gave the names of the parties in full, but the judgment was rendered in favor of Yarbrough and Ferguson, without giving their Christian names, held, there was no error, and if was affirmed with damages. This was upon appeal. In Smith v. Chenault, 48 Tex., 455, judgment was rendered in favor of A. T. Chenault & Co., plaintiffs, v. Smith & Young. Moore, J., says: “The judgment is believed to be in conformity with the usage and practice of many of our courts in similar cases. The alleged defect is believed, at most, to be a mere irregularity, not of a character to avoid the judgment or afford ground of complaint in a collateral proceeding.” In Shackelford v. Fountain, 1 Monroe, 252, it was held that a judgment in favor of J. T.’s heirs, without naming them, was not void. In Newcomb v. Peck, 17 Vt., 302, it was decided that a judgment against a defendant, omitting his. Christian name, was not void, and that an action might be maintained thereon by averring the identity of the defendant. In Root v. Fellows, 6 Cush., 29, the judgment was entered against William B. Fellows and-Day. In an action of debt upon it, Day’s counsel objected to the admission of parol evidence to prove that Newberry Day was the Day named in the judgment. The court say: “The omission of Day’s Christian name, in the writ on which the judgment was reversed, was a matter which might have been pleaded in abatement, but he suffered judgment to go against him. „ . . An execution on that judgment by the same defective name would have been valid and might have been legally enforced. In this suit on the judgment, if the writ had omitted his Christian name he might have pleaded in abatement. It was therefore proper foy the plaintiffs to insert his "full name and aver, as they have done, that they recovered judgment against him by the name of Day. So are the precedents. 1 Mass., 76; 2 Ch. Pl., 484. How, then, are the plaintiffs to prove this allegation in their writ unless by parol evidence? The counsel for Day has not informed us and we do not know.

*62These eases are sufficient to establish the proposition that this judgment is not void because it fails to give the Christian name of the defendants. It is not the less a judgment against Oliver and against Rogers, because the given name of either may have been unknown or because he may have had none. The reason for requiring the full name of the parties to be given is that, ordinarily, identity of names is sufficient proof of identity of persons. But it is not always so. In many portions of the country a judgment against John Smith, or George Washington, would convey less intimation of the man meant by it than w'ould a judgment against Hr. Rogers or against Hr. Oliver. And wTe can well conceive that the Rogers, of Rogers & Oliver, or the Oliver, of Rogers & Oliver, might be a more definite description of either individual and serve better to identify them than the names of George and William.

3. Was parol evidence admissible to identify the parties to the suit? TJpon this point the case cited, of Root y. Fellows, is authority. In Wharton on Evidence, 986, it is said: c' Like all other instruments, a record, when silent or am- . biguous, may be explained by parol. Thus, where the record gives the name of the party ambiguously, the ambiguity may be cleared and the party identified by parol extrinsic proof.” See, also, Garwood v. Garwood, 29 Cal., 514; Thompson v. Marrow, 1 Cal., 428; Newcomb v. Peck, 17 Vt., 302; Lafayette Ins. Co. v. French, 18 Howard, 409. The parol testimony in this case could not have been received to amend or correct the judgment or supply any omissions requisite to its validity. If, upon its face, it was void, it could not have been validated by parol proof. If it were not void, as we have shown, it needed, and could derive, no support from extrinsic evidence; but it was perfectly competent for the parties claiming under it to prove, by any evidence the proceedings in the case afforded, or any testimony outside of it, the identity of the parties against whom it was rendered.

*63Our conclusion is that the judgment of Longstreet, Bradford & Oo. against Sogers & Oliver was not a void judgment; that the testimony was properly admissible to identify the parties to it, and that the court erred in excluding it from the jury. Because of these errors we decidé that the case be reversed and remanded.