Before DUFFY, SCHNACKENBERG and KNOCH, Circuit Judges.
SCHNACKENBERG, Circuit Judge.
Diversity actions for personal injuries sustained by Duane F. Lee and Margaret Lee, his wife, residents and citizens of Florida, against Terminal Transport Co., Inc., an Indiana corporation, were tried before the district court. On March 18, 1958, a jury returned verdicts for plaintiffs for $100,000 and $3,000 respectively, whereupon the court entered judgment for defendant notwithstanding the verdicts. Upon appeal, we reversed this judgment and remanded the case to the district court with instructions to reinstate the verdicts. Lee v. Terminal Transport Co., 7 Cir., 269 F.2d 97.
This court's mandate issued accordingly and, on September 9, 1959, the district court vacated its prior judgment and, pursuant to the verdicts, entered judgment that plaintiff Duane E. Lee recover of defendant the sum of $100,000 and costs, and that plaintiff Margaret Lee recover the sum of $3,000, and also ordered that plaintiffs recover of defendant the sum of $1,457.95 for costs expended in the prosecution of their appeal. On the same day defendant paid to the clerk of the district court $103,000 and on September 17, 1959 it paid to the clerk costs of $1457.95.
On September 23, 1959, plaintiffs moved the district court to amend its judgment order of September 9, 1959 "by providing therein that the judgment shall bear interest at the rate of six per cent per annum from and after March 18, 1958, the date of the rendition of the verdict herein."
On October 19, 1959, this motion was withdrawn by plaintiffs without prejudice. According to a decision memorandum filed by the district judge, plaintiffs' counsel stated that "since an application of Briggs v. Pennsylvania R. Co., 334 U.S. 304, 68 S. Ct. 1039, 92 L. Ed. 1403, would preclude this court from granting the motion to amend the judgments by including interest, it was decided to withdraw the motion and thereafter institute an independent action in the state court."
On January 4, 1960, the district court, on motion of defendant, entered an order permanently enjoining plaintiffs from proceeding with a lawsuit against defendant herein, which they had filed in the Superior Court of Cook County, Illinois, and enjoining them from filing in any court other than the district court "any suit in an attempt to litigate any issues arising out of the judgments entered herein in favor of the plaintiffs and against the defendant." A motion by plaintiffs to vacate this order was denied.
From the order entered January 4, 1960, plaintiffs have appealed to this court.
At all times relevant herein, an Indiana statute, § 19-2002 Burns Indiana Statutes, Annotated, Vol. 5, Part 2, has provided:
"* * * Interest on judgments for money, whenever rendered, shall be from the date of the return of the verdict or finding of the court, until the same is satisfied * * * at the rate of six  per cent per annum."
Plaintiffs rely on this act in an attempt to require defendant to pay interest on their judgment from the date of the entry of the verdicts in the district court until September 9, 1959 when judgment thereon was entered and defendant paid to the clerk of the district court the principal amount of said judgment and said costs.
Although plaintiffs asked the district court to amend the judgment to include this interest item, they withdrew their motion and resorted to an independent action therefor in an Illinois state court.
In the exercise of their jurisdiction in diversity cases, the federal courts have ample power to pass upon all matters incidental to any such case and it is neither necessary nor permissible for a litigant in such case to resort to a state court for relief as to any such matter. Plaintiffs invoked the jurisdiction of the federal courts when they sued defendant in a district court.*fn1 Their claim to interest from the date of verdicts to the date of judgment was incidental to their case in the federal courts.*fn2 Their vacillation on whether they believed the district court had power to rule upon that claim of course could not strip the federal courts of their jurisdiction over a claim for interest on a federal court judgment.
By our judgment of June 29, 1959, we reversed the district court judgment against plaintiffs, remanding the case with instructions to reinstate the verdicts, and our mandate issued September 8, 1959, in accordance with our judgment. Neither the judgment nor the mandate referred to the subject of interest. Plaintiffs admit ...