Columbia subject headings:
Harvard subject headings:
Germany. Heer--Biography.
Schleswig-Holstein War, 1848-1850--Personal narratives, German.
Soldiers--Germany--Correspondence
Treder, Paul, 1828-1908--Correspondence.
Princeton subject headings:
Germany. Heer--Biography.
Schleswig-Holstein War, 1848-1850--Personal narratives, German.
Soldiers--Germany--Correspondence.
Trede, Paul, 1828-1908--Correspondence.