Columbia subject headings:
Cornies, Johann--Correspondence.
Germans--Ukraine, Southern--Correspondence.
Germans--Ukraine, Southern--History--19th century.
Mennonites--Ukraine, Southern--Correspondence.
Mennonites--Ukraine, Southern--History--19th century.
Harvard subject headings:
Cornies, Johann, 1789-1848--Correspondence.
Germans--Ukraine, Southern--Correspondence.
Germans--Ukraine, Southern--History--19th century.
Mennonites--Ukraine, Southern--Correspondence.
Mennonites--Ukraine, Southern--History--19th century.
Princeton subject headings:
Cornies, Johann--Correspondence.
Germans--Ukraine, Southern--Correspondence.
Germans--Ukraine, Southern--History--19th century.
Mennonites--Ukraine, Southern--Correspondence.
Mennonites--Ukraine, Southern--History--19th century.