The Union National Bank v. Louisville, New Albany and Chicago Railway Company case in 1895 revolved around the issue of whether a mortgage on railway property could be foreclosed upon by a trustee for bondholders without including junior lienholders as parties to the suit. The Supreme Court ruled that it was not necessary to include all possible claimants in such an action, but only those whose claims were derived from or through the mortgagor subsequent to his conveyance. This meant that if there were any outstanding liens against the property at the time of foreclosure, they would remain attached unless specifically extinguished by court order during proceedings. The decision clarified legal procedures regarding foreclosure actions involving multiple creditors with varying degrees of secured interest in real estate properties.

In the dissenting opinion for Union National Bank v. Louisville, New Albany and Chicago Railway Company, Justice Brewer argued that the majority's decision to allow a second mortgage on railway property was unjustified. He contended that it violated Indiana state law which stipulates that all mortgages must be recorded in order to be valid against subsequent purchasers or creditors without notice. The first mortgage had been properly recorded but not the second one; hence, he believed it should not have priority over other claims. Furthermore, he disagreed with the majority's interpretation of "creditors" as only those who extended credit after the creation of an unrecorded mortgage rather than including all existing creditors at any time during its existence. This narrow definition would unfairly protect new lenders while leaving older ones vulnerable despite their lack of knowledge about such encumbrances on properties they financed.