Columbia subject headings:
Amburger family.
Germans--Russia (Federation)--Saint Petersburg--Genealogy.
Saint Petersburg (Russia)--Genealogy.
Harvard subject headings:
Amburger family.
Germans--Russia (Federation)--Saint Petersburg--Genealogy.
Saint Petersburg (Russia)--Genealogy.
Princeton subject headings:
Amburger family.
Germans--Russia (Federation)--Saint Petersburg--Biography.
Saint Petersburg (Russia)--History.