Maine - Constructed - 1860–1869
| Allan, Harold, Schoolhouse |
| Androscoggin Mill Block |
| Butler, A. B., House |
| Cathedral of the Immaculate Conception |
| Connors House |
| Donnell, William T., House |
| Fort Gorges |
| Governor's House |
| Jefferson Town House |
| Libby-Hill Block |
| Lovejoy Bridge |
| Nichols, Capt. John P., House |
| Noble Block |
| North Waterford Congregational Church |
| Patten Building |
| Pejepscot Paper Company |
| Perry, Clark, House |
| Rackleff Building |
| Sail Loft |
| Sewall, William, House |
| St. Joseph's Catholic Church |
| Thompson Block |
| Topsham Fairgrounds Grandstand |
| Union Hall |
| University of Maine Historic District Boundary Increase |
| Wentworth, Mark F. and Eliza J., House |
| Woodman Building |
Data from United States Park Service and Wikidata
