ONLINE FORMAT
| Text | 9 |
LOCATION
| Boston (Mass.) | |
| Fort Warren (Mass.) | 6 |
| New York (N.Y.) | 1 |
SUBJECT
| United States--History--Civil War, 1861-1865--Prisoners and prisons | |
| United States--History--Civil War, 1861-1865--Prisoners and prisons | |
| Sparrow, Thomas, 1819-1884--Correspondence | 7 |
| Fort Warren (Mass.) | 1 |
| Prisoner-of-war camps--Massachusetts--Boston | 1 |
