- 2 Milling (metalworking)
- 1 Milling cutters
- 4 Milling machines
- 35 Mills (buildings)
- 2 Mills (equipment)
- 1 Mills, James Woolen Factory
- 3 Mills, William Dye Works
- 7 Millville, New Jersey
- 1 Millwork
- 1 Milman, Henry Hart, 1791-1868
- 1 Milner Gibson, Susanna, 1814-1885
- 1 Miltimore Car Axle Co.
- 1 Milton Village, Massachusetts
- 1 Milton, John, 1608-1674
- 1 Milton's Drug Store
- 1 Milwaukee WPA Handicraft Project
- 4 Milwaukee, Wisconsin
- 4 Milwaukee, Wisconsin
- 3 mince meat
- 3 Mincemeat
- 1 Mine shafts
- 6 Mineral Annex
- 1 Mineral waters
- 21 Minerals
- 2 Miners
- 1 Miners' Demands
- 1 Mines (Weapons)
- 1 Miniature books
- 2 Miniature cities & towns
- 3 Miniature wood carvings
- 137 Miniatures (Illuminations)
- 108 Miniatures (Paintings)
- 1 Minier (Firm: Paris)
- 2 Mining
- 1 Mining camps
- 1 Mining towns
- 1 Minions
- 5 Ministers (clergy)
- 3 Ministries (government)
- 6 Minneapolis, Minnesota
