| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 3 (2) | 0-2-2-0cog | 4'-8" | MWC (Green Mountain Cog) | Mt Washington Cog Railway, Bretton Woods, NH | stored | Alco (Manchester), 1883 | Named Agiocochook. | |
| 8 | 0-2-2-0cog | 4'-8" | MWC | Mt Washington Cog Railway, Bretton Woods, NH | stored | Alco (Manchester), 1892 | Named Moosilauke, cab and tender displayed with 4 in Twin Mountain. | |
| 6 | 0-2-2-0cog | 4'-8" | MWC | Mt Washington Cog Railway, Bretton Woods, NH | stored | Alco (Manchester), 1878 | Named Kancamagus. | |
| 207 (200) | 0-4-0T | 4'-8½" | Detroit Edison (Delray Power Plant) | Buckley Old Engine Show, Buckley, MI | stored | Alco, 1924 | From Belleville Pointe Park. | |
| 1352 | 2-8-2 | 4'-8½" | SLSF | Aberdeen, Carolina & Western, Candor, NC | stored | Alco (Schenectady) #51820, 09/1912 | From Taylorville, IL. Was initially acquired by the Valley Railroad, Essex, CT in 2023 for restoration to operation, but the locomotive was never delivered to the railroad and subsequently acquired by the ACWR in 2024. Being evaluated for restoration. | |
| 803 | 2-8-2T | 4'-8½" | Long Bell Lumber | Chelatchie Prairie Railroad, Chelatchie, WA | stored | Alco (Brooks) #66275, 02/1925 | From Shelton. | |
| 838 | FEF-3 | 4-8-4 | 4'-8½" | UP | UP engine house, Cheyenne, WY | stored | Alco (Schenectady) #72785, 1944 | Used as a spare parts source for UP 844. |
| 12 | 0-4-0T | 4'-8½" | Central Iron & Steel (Phoenixville Iron & Steel) | Geigertown Central Railroad Museum, Geigertown, PA | stored | Alco, 1927 | Ex-Williams Grove 1. Ran for a short time before being put on display at a diner in Enola, PA. Sold to Geigertown after diner burned. Privately owned. | |
| 76 | 0-6-0 | 4'-8½" | Trinity & Brazos Valley | LASTA, Jefferson, LA | stored | Alco (Richmond) #42929, 06/1907 | From the Bisso Towboat yard. To be moved to Garyville, LA. | |
| 6 | 30 ton | 0-4-0T | 4'-8½" | Simon Wrecking | private residence, Lincoln, NH | stored | Alco (Cooke) #1915 | From Steamtown. |
| 17 (11) | 2-8-2T | 4'-8½" | Hammond Lumber (Crossett Western) | Mineral Shops, Mt. Rainier Scenic Railroad, Mineral, WA | stored | Alco (Schenectady) #68057, 09/1929 | Was operational, but was placed in storage due to the closure of the Mt. Rainier Scenic Railroad in May 2020. | |
| 3028 | QR-1 | 4-8-4 | 4'-8½" | NdeM | New Hope & Ivyland Railroad, New Hope, PA | stored | Alco (Schenectady) #74383, 1946 | AHTS Now owned by the ALCO Historical & Technical Society. |
| 1 | 0-6-2T | 36" | M.A. Patout & Son | M. A. Patout & Son, Patoutville, LA | stored | Alco (Dickson) #1005, 1898 | Named Stephanie. Completely rebuilt and was once operated privately. | |
| 210 | 2-6-0 | 4'-8½" | Norwood & St. Lawrence | Steamtown National Historic Site, Scranton, PA | stored | Alco (Cooke) #65365, 1923 | May be relocated to the St. Lawrence Power And Equipment Museum, Madrid, NY. | |
| 1923 | 2-8-0 | 4'-8½" | Lowville & Beaver River | Steamtown National Historic Site, Scranton, PA | stored | Alco (Cooke) #62623, 1920 | Appears to be in poor cosmetic condition and awaiting possible cosmetic restoration. | |
| 44 | P | 4-6-0 | 4'-8½" | NYC&StL | Steamtown National Historic Site, Scranton, PA | stored | Alco (Brooks) #38831, 1905 | Oldest surviving Nickel Plate Road locomotive. Appears to be in poor cosmetic condition and is awaiting possible cosmetic restoration. |
| 502 (5313) | J-1 | 4-6-4 | 4'-8½" | TH&B (NYC) | Steamtown National Historic Site, Scranton, PA | stored | Alco, 1927 | Steam generator car made from the tender of NYC Hudson 5313. |
| 12 | 0-8-0 | 4'-8½" | A&S | Museum of Transportation, St. Louis, MO | stored | Alco (Schenectady) #66952, 08/1926 | Three cylinder. | |
| 1015 | D | 4-4-2 | 4'-8½" | C&NW | Museum of Transportation, St. Louis, MO | stored | Alco (Schenectady) #5613, 1900 | 80-inch drivers! To eventually be cosmetically restored. |
| 14 (77) | 0-6-0 | 4'-8½" | Union (M&NF) | Big South Fork Scenic Railway, Stearns, KY | stored | Alco (Schenectady) #71323, 1944 | From the Tombstone Junction RR, McCreary County, KY, then the Kentucky & Tennessee Railway, Hemlock, KY. An attempt to have this locomotive restored to operating condition failed. It is now stored in pieces in the back of a shop. | |
| 334 | MK-71 | 2-8-2 | 4'-8½" | WP | Western Railway Museum, Suisun City, CA | stored | Alco (Schenectady) #67972, 1929 | |
| 2 | 2-6-2T | 4'-8½" | Quincy RR | Niles Canyon Railway, Sunol, CA | stored | Alco #66032, 12/1924 | Taken out of service in 2017. Stored while awaiting restoration. | |
| U | 4-8-4 | 4'-8½" | GTW | Illinois Railway Museum, Union, IL | stored | Alco, 1941 | Tender only. It was probably used as an auxiliary water tender. | |
| 5 | 0-4-0ST | 4'-8½" | HELC | Railstar, Black Clawson, Watertown, NY | stored | Alco, 1920 | From CT Trolley Museum. | |
| 1070 | L-9 | 0-6-0 | 4'-8½" | NP | Lake Whatcom Railway, Wickersham, WA | stored serviceable | Alco (Manchester) #41879, 1907 | 1070 has operated in every decade of the 20th century. |
