Columbia subject headings:
Catholics--Pennsylvania--Pittsburgh--History.
Lutherans--Pennsylvania--Pittsburgh--History.
Pittsburgh (Pa.)--Church history.
Slovak Americans--Pennsylvania--Pittsburgh--History.
Harvard subject headings:
Catholics--Pennsylvania--Pittsburgh--History.
Lutherans--Pennsylvania--Pittsburgh--History.
Pittsburgh (Pa.)--Church history.
Slovak Americans--Pennsylvania--Pittsburgh--History.
Princeton subject headings:
Catholics--Pennsylvania--Pittsburgh--History.
Lutherans--Pennsylvania--Pittsburgh--History.
Pittsburgh (Pa.)--Church history.
Slovak Americans--Pennsylvania--Pittsburgh--History.