Chicago Historical Society v. Paschen

The Chicago Historical Society brought this action to restrain the county of Cook and its officials from collecting taxes for the years 1947 through 1954 which had been assessed against four parcels of real estate owned by the Society. The complaint alleged that in an earlier action in the same court an injunction had been issued to restrain the collection of 1945 taxes upon the same properties, “and that said decree is res judicata of the fact that said real estate is, and so long as the plaintiff continues to own it will continue to be, exempt from all real estate taxes.”

The answer set out…