Template:3InchM1898Guns
| Post | Battery | Emp. | Gun | GSN | Mount | MSN | Start | Stop | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Fort Delaware | Battery Alburtis | 1 | M1898MI | 22 | M1898 | 22 | 1901 | 1920 | |
| Fort Delaware | Battery Alburtis | 2 | M1898MI | 24 | M1898 | 24 | 1901 | 1920 | |
| Fort Delaware | Battery Allen | 1 | M1898MI | 18 | M1898 | 18 | 1901 | 1920 | |
| Fort Delaware | Battery Allen | 2 | M1898MI | 21 | M1898 | 21 | 1901 | 1920 | |
| Fort Taylor (2) | Battery Adair | 1 | M1898MI | 120 | M1898 | 120 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Adair | 2 | M1898MI | 42 | M1898 | 42 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Adair | 3 | M1898MI | 43 | M1898 | 43 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Adair | 4 | M1898MI | 44 | M1898 | 44 | 1904 | 1920 |
|
| Fort Taylor (2) | Battery Dilworth | 1 | M1898MI | 39 | M1898 | 39 | 1901 | 1920 | |
| Fort Taylor (2) | Battery Dilworth | 2 | M1898MI | 41 | M1898 | 41 | 1901 | 1920 | |
| Fort Carroll | Battery Augustin | 1 | M1898MI | 17 | M1898 | 17 | 1900 | 1920 | |
| Fort Carroll | Battery Augustin | 2 | M1898MI | 16 | M1898 | 16 | 1900 | 1920 | |
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