| 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 & Company, Boston MA |
| Ames | N.P. Ames, J.T. Ames or Ames Manufacturing Company, MA |
| Columbia | Columbia Foundry, Georgetown DC |
| FPF | Fort Pitt Foundry, Pittsburgh PA |
| Greenwood | Miles Greenwood & Co., Cincinnati OH |
| Hooper | Henry N. Hooper and Company, Boston MA |
| Revere | Revere Copper Company, Boston MA |
| Tredegar | Tredegar Foundry, Richmond VA |
| unknown | tube has no foundry marking |
| Vienna | cannon made in Vienna, Austria |
| 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 |
|---|---|---|---|---|---|---|---|
| 6-pounder iron field guns, unknown model | |||||||
| Columbia | 30 | no rimbases | |||||
| Columbia | 40 | no rimbases | |||||
| 6-pounder bronze field guns, Model of 1841 | |||||||
| Ames | 45 | 884 | north redoubt | ||||
| Ames | 47 | 886 | north redoubt | ||||
| 3.8-inch bronze James rifle, Type 1 | |||||||
| Ames | CT | 61 | 869 | 15RH | marked "STATE OF CONN," "12" on muzzle | ||
| 3.8-inch bronze James rifle, Type 2 Series 4 | |||||||
| Ames | 58 | GTB | 104 | 62 | 920 | 10RH | |
| 4.5-inch Ordnance Rifle, Model of 1861 | |||||||
| FPF | 10 | DWF | 61 | 3561 | 9RH | from Oswego NY City Hall | |
| 12-pounder bronze Napoleons, Model of 1857 | |||||||
| Alger | 1 | TJR | 838 | 61 | 1232 | w/handles | |
| Alger | 2 | TJR | 841 | 61 | 1225 | w/handles | |
| Alger | 3 | TJR | 849 | 61 | 1228 | w/handles | |
| Ames | 2 | BH | 137 | 57 | 1228 | w/handles | |
| Ames | 3 | BH | 138 | 57 | 1228 | w/handles | |
| Ames | 4 | BH | 139 | 57 | 1223 | w/handles | |
| Ames | 7 | PVH | 61 | 1227 | w/handles | ||
| Ames | 8 | PVH | 61 | 1231 | w/handles | ||
| Ames | 14 | GTB | 1 | 61 | 1232 | w/handles | |
| Ames | 16 | GTB | 16 | 61 | 1220 | w/handles, defaced | |
| Ames | 17 | GTB | 61 | 1225 | w/handles | ||
| Ames | 20 | GTB | 61 | 1232 | w/handles | ||
| Hooper | *201 | *TJR | 221 | worn | |||
| Revere | 2 | JPF | 2 | 62 | 1223 | w/handles | |
| FOUNDRY | REG# | INSP | FDY# | YR | WEIGHT | GRVS | COMMENTS |
| 12-pounder Confederate bronze Napoleon | |||||||
| Tredegar | 63 | 1275 | muzzle has been shortened | ||||
| 12-pounder bronze field howitzer, Model of 1835 | |||||||
| Alger | 2 | GT | 37 | 712 | |||
| 12-pounder bronze field howitzer, Model of 1838 | |||||||
| Alger | 12 | JWR | 39 | 689 | |||
| 12-pounder bronze field howitzer, Model of 1841 | |||||||
| Greenwood | 72 | none | 61 | 789 | no "U.S." or inspector's initials | ||
| 12-pounder Confederate bronze field howitzers | |||||||
| Tredegar | 1533 | 62 | 760 | muzzle marked "E.B." for Edenton Battery | |||
| unknown | unmarked, kernel of corn knob | ||||||
| 24-pounder bronze field howitzers, Model of 1841 | |||||||
| Alger | 39 | TJR | 1386 | 63 | 1296 | ||
| Ames | 8 | JWR | 47 | 1314 | |||
| 24-pounder Austrian bronze field howitzer | |||||||
| Vienna | 31 | ||||||
| 6.4-inch (100-pounder) Army Parrott rifles | |||||||
| WPF | 130 | AM | 775 | 63 | 9727 | 9RH | South gate |
| WPF | 205 | RMH | 967 | 64 | 9772 | 9RH | South gate |
| 8-inch siege mortar, Model of 1840 | |||||||
| Alger | 11 | JWR | *42 | 932 | |||
| 10-inch Rodman gun, Model of 1861 | |||||||
| FPF | 126 | CPK | 1643 | 63 | 14840 | South Gate | |
| Total Civil War cannon at Fort Niagara, NY: 35 | |||||||