Maine - Criteria: B (person)
| Lombard, Alvin O., House |
| Maine Eye and Ear Infirmary |
| Main Street-Frye Street Historic District |
| Main Street Historic District |
| Mallett, E. B., Office Building |
| Manley, Joseph and Susan, Summer Cottage |
| Manning, Richard, House |
| Mansion House, The |
| Maplewood Farm |
| Martel, Dr. Louis J., House |
| Mason, Dr. Moses, House |
| May, Sophie, House |
| McGilvery, Capt. John, House |
| McGilvery, Capt. William, House |
| Merriconegan Farm |
| Merritt, Captain, House |
| Mitchell House |
| Moore-Mayo House |
| Morison, Capt. James, House |
| Morrill, Lot, House |
| Nannau |
| New Gloucester Historic District |
| Nordica Homestead |
| Norumbega |
| Olmsted, Frederick Law, Summer Home |
| Olson House |
| Parsons, Josiah K., Homestead |
| Parsons, Marion, House |
| Parsons, Stephen, House |
| Patch, Edith Marion, House |
| Peck, Bradford, House |
| Pendle Hill |
| Pendleton, James G., House |
| Pepperrell, William, House |
| Perry, William F., House |
| Peters, John, House |
| Pike's Mile Markers |
| Pond Meeting House |
| Porter Memorial Library |
| Portland Club |
| Pownalborough Courthouse |
| Purington, Elisha, House |
| Rangeley Trust Company Building |
| Reed, Philo, House |
| Reed, Thomas Brackett, House |
| Richardson House |
| Riggs-Zorach House |
| Robinson, Edward Arlington, House |
| Rose, Robert, Tavern |
| Ruggles House |
| Russwurm, John B., House |
| Saco Historic District |
| Salmon Falls (West) Historic District |
| Schoodic Peninsula Historic District |
| Scott, Capt. George, House |
| Sea Change |
| Sewall, William, House |
| Shiloh Temple |
| Smith, F.O.J., Tomb |
| Soderholtz, Eric E., Cottage |
| Southard Block |
| South China Meeting House |
| Spring Street Historic District |
| Squire Tarbox House |
| Stanwood Homestead |
| St. Croix Island International Historic Site |
| Stewart Free Library |
| Stowe, Harriet Beecher, House |
| Sunset Lodge |
| Thacher-Goodale House |
| Thatcher, Henry Knox, House |
| Thomaston Historic District |
| Treat, Nathaniel, House |
| Ulmer, George, House |
| Underwood, Joseph H., House |
| Vallee Family House |
| Vaughan Homestead |
| Vickery Building |
| Von Mach Site (ME l5l/02) |
| Wadsworth Hall |
| Wadsworth-Longfellow House |
| Wallace-Haskell Homestead |
| Wallingford Hall |
| Warren Block |
| Washburn, Gov. Israel, House |
| Webster, Moses, House |
| Wentworth, Mark F. and Eliza J., House |
| Weston, Samuel, Homestead |
| White, E. B., House |
| White, James P., House |
| Wiggin, Kate Douglas, House |
| Wiley, Benjamin, House |
| Wiley, James Sullivan, House |
| Williams, Timothy and Jane, House |
| Windswept |
Data from United States Park Service and Wikidata
