| Abbreviations and Symbols | |
|---|---|
| * | Datum following inferred from contemporary documents |
| REG# | Army or Navy Registry Number |
| INSP | Initials of inspecting ordnance officer or other inspector |
| FDY# | Foundry number (founder's own internal control number) |
| GRVS | Number of rifling grooves, Right or Left hand twist |
| YR | Year cannon was completed and/or inspected |
| Alger | Cyrus Alger & Co., Boston MA |
| Phoenix | Phoenix Iron Company, Phoenixville PA |
| unknown | foundry unmarked and unknown |
| WPF | West Point Foundry, Cold Spring NY |
Listings are in bore size order. Within a given bore size, the sequence is guns, howitzers, and rifles. With each of these, the order is field, then siege.
| FOUNDRY | REG# | INSP | FDY# | YR | WEIGHT | GRVS | COMMENTS |
|---|---|---|---|---|---|---|---|
| 3-inch Ordnance Rifles, Model of 1861 | |||||||
| Phoenix | 649 | TTSL | *701 | 63 | 816 | 7RH | Bolivar Heights |
| Phoenix | 777 | SCL | *836 | 64 | 816 | 7RH | Bolivar Heights |
| 3.3-inch Army Parrott rifle, Model of 1861 | |||||||
| WPF | none | none | 229 | 61 | 904 | 3RH | purchased by Union Committee of NYC |
| 6-pounder Confederate bronze field gun | |||||||
| unknown | 764 | ordnance shape, unmarked except for weight | |||||
| 3.67-inch (20-pounder) Navy Parrott rifle, Model of 1861 | |||||||
| WPF | 82 | *RBH | *694 | 61 | *1695 | 5RH | from Kennesaw Mtn NBP via Gettysburg NMP |
| 24-pounder bronze Coehorn mortar, Model of 1838 | |||||||
| Alger | 14 | TJR | 1060 | 62 | 166 | from Petersburg NB | |
| Total Civil War cannon at Harpers Ferry: 6 | |||||||