delivered the opinion of the court:
On December 23, 1914, Hosea W. Wells filed in the superior court of Cook county a petition to contest the election of ten associate judges of the municipal court of Chicago. The petition sets forth that an election was held on November 3, 1914, in the city of Chicago, for the election of ten associate judges of the municipal court of the city of Chicago and that there were forty candidates for election to said offices,—ten candidates on each of the tickets designated as the progressive, socialist, democratic and republican. All of said candidates except the petitioner aforesaid were made parties defendant to the petition. The petition charges, in general terms, violations of the law by mistakes and irregularities in the count and tabulation of votes, and there were •many other charges of fraud and illegal acts by the election officers usually found in such petitions for election contests. The petition further charges that after the delivery by the •judges and clerks of the election returns of said election to the properly constituted authorities, the canvassing board for the city of Chicago made a canvass of the results shown by the returns and on November 23, 1914, made a proclamation of their canvass and the vote as shown by said canvass. The petition sets forth the number of men and women votes each of the forty candidates received at said election *536in a tabulation showing the same results given in the tabulation in the opinion of this court in Donahoe v. Owens, (ante, p. 318.) The petition contained the usual prayer.
Answers were filed to the petition by Arnold Heap, appellee, and James Donahoe, appellant. In his answer appellant stated that a record of the vote cast at said election was made by said board of caiivassers as stated by petitioner, and that the totals therein set out are substantially correct, except that said board set forth in its tabulation the total number of votes cast for every candidate for the office of associate judge of said court as being the total vote cast for him by men and women voting at said election. It is also averred in the answer that the number of votes cast by men and women at said election was correctly set forth by said canvassing board in its tabulation of the vote cast at said election. It is also averred in said answer that appellant was unlawfully deprived of one of the judgeships by reason of the illegal votes cast in said election by the women voters and the counting and canvassing of the same. The substance of the answer of Arnold Heap to the said petition is an admission that Wells was a qualified candidate for the office aforesaid and an admission that the tabulated vote set forth in said petition correctly sets forth the vote of both men and women cast for all the various candidates at said election as shown by the returns to the canvassing board and by the abstract of the vote and the proclamation made by the canvassing board. It is averred, also, in the answer that the tabulation made by the canvassing board truly sets forth the number of votes cast at said election for said office by both men and women, and it is denied in the answer that the said tabulation and proclamation so made by the canvassing board are incorrect, illegal or fraudulent, and the contestee therefore claimed in his answer that he, and not the petitioner, was duly elected to said office.
On December 30, 1914, appellant filed a cross-petition to contest the election of Arnold Heap and to which Heap *537was made the sole defendant. After the usual averments made in such a petition, the substance of the averments in the cross-petition.is, that the canvassing board made a true tabulation and proclamation of all the votes cast by men and women at said election for the various candidates a't said election, and sets forth such tabulation in tabulated form as shown in Donahoe v. Owens, supra. The cross-petition then sets forth that the office of associate -judge of the municipal court of.Chicago is an office created or provided for by the provisions of the constitution and does not fall within the description of offices set out in the Women’s Suffrage act of June 26, 1913, for which women may vote; that therefore the votes of women cast for the several candidates at said election should not be counted and that only the votes of the men cast at said election should be counted. The petition then charges that the cross-petitioner, and not Arnold Heap, was duly elected to said office. To the cross-petition Arnold Heap filed four pleas in bar, the first of which is, in substance, that appellant filed on December 3, 1914, in the circuit court of Cook county, a petition for a writ of mandamus against the members of the canvassing board. The plea then sets forth the substantial averments of the petition for mandamus as set forth in Donahoe v. Owens, supra, and further sets forth that all the defendants to the said petition for mandamus filed general demurrers, which were sustained by the circuit court and the petition for mandamus dismissed, etc.; that on such hearing upon said demurrer this respondent and his co-defendants in said petition for mandamus argued, among other things, that at said election the women voters were qualified legal voters under said act of June 26, 1913, and were permitted by law and the constitution to vote for the office of associate judge of said municipal court, and that said petition for mandamus was ill-founded, and that the said circuit court, in passing and ruling upon said demurrer, so held; that the appellant excepted to the judgment of the circuit court *538and was granted an appeal upon filing bond of $200 within twenty days; that a bill of exceptions was filed within sixty days, as allowed by the court, but that no appeal bond was filed; that the judgment in said mandamus suit remains in full force and effect, and appellee pleads the same to the whole of the cross-petition and in bar thereof. The said four pleas were set down for argument as to their sufficiency, whereupon the court found and adjudged that said first plea was a good and sufficient plea in bar to the cross-petitioner’s action, and that the second, third and fourth were insufficient. Appellant having elected to stand by his cross-petition, and having declined to file any replication to the said first plea and to recognize the same as sufficient to bar his action, the court dismissed the cross-petition at the cost of appellant, and appellant has perfected his appeal to this court.
The substance of appellant’s claim in this court, as set forth in his cross-petition, is, that the election returns and the tabulation of such returns by the canvassing board are correct as to the number of votes actually cast at said election for the various candidates for said office by men and women voters, and that all the votes cast by the men voters at said election are legal votes and were properly counted for said candidates and are the only legal votes that were cast at said election. He bases his claim that all of the said votes cast by women are illegal votes and were- improperly and illegally counted for the various candidates upon the ground that an associate judge of the municipal court of Chicago is an, officer named or provided for by article 6 of the constitution, for the election of whom women cannot legally vote. His claim that women cannot legally rmte for a candidate for that office is sustained by the holding of this court in the case of Franklin v. Westfall, 273 Ill. 402, which holds, in substance, that as the constitution provides that such an officer shall, when such a court is created, be chosen at an election, such election must be by men voters, as ruled *539in People v. English, 139 Ill. 622. Excluding from the count the votes cast by women at said election, the ten candidates elected at said election,—i. e., the ten candidates receiving the greatest number of men votes cast at said election as set forth in said cross-petition,—are the following: Charles N. Goodnow, Joseph E. Uhlir, Sheridan E. Fry and Samuel H. Trude, republican candidates, and John Stelk, Frank H. Graham, Dennis W. Sullivan, Edmund K. Jarecki, Joseph E. Ryan and James Donahoe, democratic candidates.
The only proposition, as thus set forth by appellant, that is challenged by appellee on this record is appellant’s right to assert and maintain in this action that the votes cast by women in said election are illegal votes and cannot be counted against appellant. Appellee’s exact contention is that appellant is estopped by the judgment of the circuit court in the mandamus proceeding to assert that the women votes were illegal, as set forth in appellee’s first plea. The circuit court properly held that appellant made no proper showing in that case to warrant the court in compelling the canvassing board, by mandamus, to grant him a certificate of election, notwithstanding the fact that women had no legal right to vote at said election. The members of the canvassing board are mere ministerial officers, and it was not within their province either to determine the constitutionality of our statute on women suffrage or the constitutional question whether or not such associate judges belong to the class of officers for whom women may legally vote under said act. (High on Ex. Legal Remedies, sec. 43.) Their duty is a mere mechanical or mathematical duty. They can only compute the votes cast for the several candidates that are duly certified to them and declare the result. They had no right to go behind the returns and determine whether any of the votes cast were illegal. The writ of mandamus is not the proper writ to finally determine the right of any candidate to an office. (People v. *540 Head, 25 Ill. 287; People v. Hilliard, 29 id. 413.) As the canvassing board had no right or power to decide the legal points in question, the circuit court had no right or power in that action to compel it to make such a decision, and if it did make the decision it cannot estop appellant to assert his rights in this suit. (1 Freeman on Judgments, sec. 264.)
To render any judgment or other final adjudication proceeding from a court of competent jurisdiction available as a bar in a second action between the same parties or their privies it is absolutely essential that the issues in the second action, upon which the judgment is brought to bear, were material issues in the first action and necessarily determined by the judgment therein. (1 Freeman on Judgments, sec. 256.) Stated in another way, “to be a bar to future proceedings it must appear that the former judgment necessarily involved the determination of the same fact to prove or disprove which it is offered in evidence.” (Foster v. Busteed, 100 Mass. 409.) The court must also have jurisdiction to make such a decision. It therefore seems clear that the finding or decision of the circuit court in the mandamus proceeding that the votes of the women were illegal votes is not a bar to this proceeding upon the doctrine of res judicata or estoppel by verdict. The presumption must necessarily be that the circuit court reached its judgment by determining questions necessarily involved in that suit, and that questions both of law and fact were determined that were applicable to the relief sought, and those only. There is no theory upon which the proceeding in the circuit court could be an absolute bar to this "suit. If it is such a bar it must be mutual, as argued by appellant’s counsel, and the judgment of the court as rendered," or a judgment in the mandamus proceeding against appellee, would have barred him from maintaining an election contest against appellant.
If the demurrer be carried back to the cross-petition said cross-petition was not demurrable because other candidates in said election were not made parties thereto, as argued by *541appellant. Both the cross-petition and the answer of appellee to the original petition show that it was unnecessary to make any other candidates parties, because they disclose, and in fact it is asserted in both of them, that the true votes "were certified and canvassed and tabulated by the canvassing board. There was only one question presented, so far as disclosed by the pleadings, for the court to determine, and that is whether appellant was elected or appellee, who is now holding the office and the only one holding the office whose right thereto is questioned. It was not necessary to make other candidates parties. Brents v. Smith, 250 Ill. 521; Mayfield v. Miles, 266 id. 186.
Cross-errors have been argued by appellee in his brief which it is claimed are assigned on the record. There is no such assignment on the record properly signed by appellee or his counsel. There is an assignment of errors on the record purporting to be by appellee which questions the rulings of the court in overruling appellee’s second, third and fourth pleas. Such assignment is not signed by appellee or his counsel. The cross-errors constitute the pleadings of appellee in this case and must be signed by him or his attorney before the court will consider them. (2 Ency. of PI. & Pr. 960.)
For the reasons above given, the judgment of the superior court is reversed and the cause remanded for further proceedings, with directions to permit appellee to plead any further or other defense he may have to this action.
Reversed and remanded, with direction.