"He's on loan from the Carpatho-Russian church".
Carpatho-RuSSian is unusual. There are Carpatho-Rusyn, Carpatho-Rusian, Carpatho-Rusniak, Carpatho-Ruthene, Carpatho-Ruthenian, Greek-Catholic, Byzantine rite, Uniates. Not "Russian", with two ss. These use old Church Slovanic to celebrate the mass. I attended St.Mary's in NYC until I moved away to where there is only Roman Rite.