Columbia subject headings:
Hartwell, John F. L.--Correspondence.
Hartwell, John F. L.--Diaries.
New York (State)--History--Civil War, 1861-1865--Personal narratives.
Soldiers--New York (State)--Correspondence.
Soldiers--New York (State)--Diaries.
United States--History--Civil War, 1861-1865--Personal narratives.
United States. Army. New York Infantry Regiment, 121st (1861-1865)
Harvard subject headings:
Hartwell, John F. L.--Correspondence.
Hartwell, John F. L.--Diaries.
New York (State)--History--Civil War, 1861-1865--Personal narratives.
Soldiers--New York (State)--Correspondence
Soldiers--New York (State)--Diaries.
United States--History--Civil War, 1861-1865--Personal narratives.
United States. Army. New York Infantry Regiment, 121st (1861-1865)
Princeton subject headings:
Hartwell, John F. L.--Correspondence.
Hartwell, John F. L.--Diaries.
New York (State)--History--Civil War, 1861-1865--Personal narratives.
Personal narratives.
Soldiers--New York (State)--Correspondence.
Soldiers--New York (State)--Diaries.
United States--History--Civil War, 1861-1865--Personal narratives.
United States. Army. New York Infantry Regiment, 121st (1861-1865)