U.S.S. HARVEST MOON SPECIFICATIONS
| Builder | Joseph W Dyer, Portland, ME |
| Launched | November 22, 1862 |
| Owner | Spear, Lang and Delano of Boston |
| Navy Acquistion | Purchased November 16, 1863 at Boston by Commodore J. B. Montgomery |
| Cost | $99,300 |
| Tonnage: | 546 |
| Dimensions | Length,193'; Beam, 29'; Depth of hold 10'. |
| Draft | 8' |
| Speed | Maximum, 15 knots; average 9 knots |
| Commissioned | February 12, 1864 |
| Armament: | 1 20-Pdr. Parrott Rifle, 4 24-Pdr. Howitzers, 1 12-Pdr. rifle |
| Machinary: | Sidewheels, 1 vertical beam engine (41" diameter; 10' stroke) |
| Engine manufacturer | The engine was salvaged from a steamer lost in China waters, shipped to Halifax, and rebuilt by the Portland Company as their engine #4. |