No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
1 | | 0-4-0T | 4'-8½" | Henry J Kaiser (Santa Cruz Portland Cement) | Silverbend Farms, Clarksburg, CA | private stored | H.K. Porter #3578, 09/1906 | |
12 | | 0-4-0T | 600mm | Lambert & Mahieux | John Nelson, Courtland, MS | private operational | Orenstein & Koppel (Berlin) #5419, 1913 | Named Marie, from Woodstown, NJ. |
| | 0-4-0T | 600mm | Deutsche Tiefbau AG | Butte Valley Narrow Gauge Railroad, Dorris, CA | private | Ceskomoravska Kolben Danek #2056, 1941 | From Czech Republic. |
| | 0-4-0T | 42" | Phoenixville Iron & Steel | Geigertown Central Railroad Museum, Geigertown, PA | private | H.K. Porter | |
12 | | 0-4-0T | 4'-8½" | Central Iron & Steel (Phoenixville Iron & Steel) | Geigertown Central Railroad Museum, Geigertown, PA | private | 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. |
2 | | 0-4-0T | 4'-8½" | Old Dominion Soapstone | North Fork Lumber, Goshen, VA | private | Vulcan Iron Works (Wilkes-Barre) #1436, 12/1909 | Previously placed on display in Marion, VA. |
1 | | 0-4-0T | 4'-8½" | National Pole & Treating (Washington Wood Preserving) | Laytonville, CA | private | Davenport Locomotive Works #2071, 1926 | |
| | 0-4-0T | 24" | | Don Leap, Madley, PA | private, stored | BMAG #9114, 1927 | |
| | 0-4-0T | 24" | | Don Leap, Madley, PA | private, stored | Orenstein & Koppel (Berlin) #12721, 1936 | |
1704 (11) | | 0-4-0T | 36" | Helena Mining | Phil Richardson, Missoula, MT | private operational | H.K. Porter #1704, 12/1896 | |
| | 0-4-0T | 4'-8½" | Watoga Stone | unknown, Nelsonville, OH | private restoration | H.K. Porter, 1923 | From the C.P. Huntington RR Hist Soc, Huntington, WV. Full restoration to operation expected to be completed by 2026. |
| | 0-4-0T | 700mm | Erzbergbau Salzgitter | farm, Palmersville, TN | private | Skoda #1099, 1940 | From Benton, KY. Up for sale as of 2022. |
| | 0-4-0T | 700mm | Erzbergbau Salzgitter | farm, Palmersville, TN | private | Henschel & Sohn (Kassel) #27125, 1951 | From Benton, KY. Up for sale as of 2022. |
1 | 6x10 | 0-4-0T | 24" | Standard Mining | Liberty Farms and Flour Mill, Skandia, MI | private | H.K. Porter #1715, 1896 | Converted from compressed air. From Bow Hill Railroad, Bow, WA. |
701 | | 0-4-0T | 36" | NC&StL | Sam Werner Lumber, Tracy City, TN | private, stored | Vulcan Iron Works (Wilkes-Barre) #1780, 1911 | |
704 | | 0-4-0T | 36" | NC&StL | Sam Werner Lumber, Tracy City, TN | private, stored | Vulcan Iron Works (Wilkes-Barre) #1987, 1912 | |
3 | | 0-4-0T | 36" | Detroit Yukon Mining | Tom Gazi, unknown, CA | private restoration | H.K. Porter #3024, 04/1904 | Incorrectly identified as Northern Light, Power, Coal & Transportation; currently somewhere in southern California. |
202 (3) | 14 ton | 0-4-0T | 4'-8½" | Pacific Portland Cement | Roots of Motive Power, Willits, CA | private | H.K. Porter #5512, 1913 | From Clarksburg. |