plaintiffs in this suit claim title, was not a party thereto. Since Mattie Lockhart was not a party to the Pederson suit the judgment in that case was not binding upon her nor her privies. Bass v. Sevier, 58 Texas 567; Read v. Allen, 56 Texas 182; 30 Am. Jur. 951; 34 C. J., p. 973, sec. 1391. Since the judgment in that suit was not binding upon Mattie Lockhart nor those who claim under her, plaintiffs who claim under Mattie Lockhart may not invoke its bénefits in their behalf, for a judgment must be mutually binding in order to be available as an estoppel in behalf of either of the parties or their privies in a subsequent suit. Corpus Juris states the rule as follows:
“It is a rule that estoppel must be mutual; and therefore a party will not be concluded, against his contention, by a former judgment, unless he could have used it as a protection, or as the foundation of a claim, had the judgment been the other way; and conversely no person can claim the benefit of a judgment as an estoppel upon his adversary unless he would have been prejudiced by a contrary decision of the case.” 34 C. J., p. 988, sec. 1407.
The above rule is abundantly supported by other authoritories. 30 Am. Jur., p. 950, sec. 219; 26 Tex. Jur., p. 211; Horton v. Hamilton, 20 Texas 606; Davis v. First National Bank, 139 Texas 36 (par. 6) 161 S. W. (2d) 467, par. 17; Read v. Allen, 56 Texas 182, 192.
It is true that Mattie Lockhart’s tenants in common were parties to the Pederson suit, but tenants in common do not claim through or under each other, and there is no such privity between them that a judgment for or agaisnt one of them, affecting title to land, will bind the other. 34 C. J. p. 1013, sec. 1435.
It is also true that the judgment in favor of the plaintiffs in the Pederson suit for 107 1/2 acres undivided interest in the 160-acre tract was based, at least in part, on the findings of the jury and the judgment of the court that John B. Lockhart, Sr., had acquired title to the whole 160 acres by limitation, and the plaintiffs in that suit received the benefit of that judgment. But we do not think this alters the case. Since Mattie Lockhart was not a party to that suit, those who, claim under her are in no position to assert the plea of estoppel.
Even though Mattie Lockhart, to some extent, received the benefit of the judgment in the Pederson suit, it was not her