| Subject | Page |
| Main Street, Cramerton, the shortest | 43 |
| Majestic Manufacturing | 58 |
| Manning, Eddie | 108 (photo) |
| Manville-Jenckes Loray | 45, 53, 55 |
| Marcellus, Wright, Cox, & Smith, architect firm | 102 |
| Martin, Samuel | 17 |
| Martin's Transfer Trucks, Belmont | 59 |
| Martin's Transfer Trucks, Belmont | 59 (photo) |
| Marvin, Helen | 106 (photo) |
| Marvin, Helen | 106 |
| Mauney Cotton, Cherryville | 123 |
| Mauney Cotton, Cherryville | 123 (photo) |
| Mauney, Christian | 10 |
| Mayflower Weave Mill | 37 |
| Mays, J. H. | 37 |
| Mayworth mill | 37 (photo) |
| McAden mill | 110 |
| McAden Mill No. 2 | 56 (photo) |
| McAden, Benjamin | 57 |
| McAden, George | 57, 85 |
| McAden, Giles | 57 |
| McAden, Henry | 57 |
| McAden, Rufus Yancey | 57 (photo) |
| McAdenville Mill | 58, 108 |
| McAdenville, NC | 56, 110 |
| McClure, Ethel Froneberger | 21 (photo) |
| McClure, Mary Ann | 20 (photo) |
| McClure, William | 21 (photo) |
| McConnell, D. E., Dr. (library) | 86 |
| McGill, Bessemer | 44 |
| McHenry, Amy | 107 |
| Milburn and Heister firm | 50, 75 |
| Milburn, Frank | 75 |
| Mill House, Cramerton, Interior | 91 (photo) |
| mill houses, Gastonia | 97 |
| mill houses, Gastonia | 97 (photo) |
| Mill Road | 8 |
| Mill Village, Gaston County | 89 (photo) |
| Mill, Mayflower Weave | 37 |
| mills, number of, Gaston County | 70 |
| miniseries, Shake, Rattle, and Roll | 49 |
| Mitchell, Elisha, Dr. | 19 |
| Mobley, David, Mrs. | 44 |
| Moore, Alexander | 17 |
| Moore, John | 17 |
| Morris Jewelers | 63 (photo) |
| Mount Holly Depot | 123 (photo) |
| Mount Holly Depot | 123 |
| Mount Holly, downtown | 28 (photo) |
| Mount Holly, horse and buggy on road in | 26, 27 (photo) |
| Mount Holly, NC | 39 |
| Mountain Island | 8, 38, 39 |
| Mountain Island hydroelectric plant | 38 (photo) |
| Mountain Island hydroelectric plant | 38, 39 |
| Mountain Island Mill | 38 |
| Mountains | 9 |
| movie, Saint Maybe | 48 |
| movie, The Last Brickmaker in America | 49 |
| movies, Gastonia | 48, 49 |
| mural, Gastonia Post Office | 51 |
| mural, William Chronicle, South Fork Boys | 13 |
| murals, Biggers | 97 |
| Museum of Natural History and Planetarium, Schiele | 98 (photo) |
| Museum of Natural History, Gaston County | 98 |
| museum, Belmont | 123 |
| Museum, C. Grier Beam Truck | 105 |
| Museum, C. Grier Beam Truck | 105 (photo) |
| Museum, Cherryville Historical | 105 |
| Museum, Cherryville Historical | 105 |
| Museum, Schiele | 95 |
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