- 2 McNally, John J., 1853 or 4-1931.
- 1 McPhersonville, South Carolina
- 1 McQuaid's Steam Boiler Factory
- 1 McStoy Bros. (waste)
- 5 Mead, Larkin G. (Larkin Goldsmith), 1835-1910.
- 2 Meadow Inn
- 1 Meadow Street
- 1 Meadowlarks
- 16 Meals (eating, event)
- 1 Measor, Charles Pennell
- 1 Measured drawings
- 4 Measurements (dimensions)
- 1 Measuring
- 3 Meat
- 19 Meat industry
- 2 Meat racks
- 1 Mechanic House
- 2 Mechanical drawings
- 12 Mechanics (people)
- 2 Mechanics Bank
- 1 Mechanics Cemetery
- 2 Mechanics Fire Insurance Co.
- 4 Mechanics Hall
- 1 Mechanics Hotel
- 1 Mechanics Hotel (B.S. Sharp)
- 1 Medallions (medals)
- 3 Medallions (ornament areas)
- 11 Medals
- 1 Medea (Greek mythology)
- 1 Medea (Sculpture)
- 1 Media Street
- 4 Media, Pennsylvania
- 1 Mediation hopes
- 1 Medical aspects of war
- 5 Medical education
- 3 Medical equipment & supplies
- 1 Medical offices
- 24 Medical schools (buildings)
- 1 Medici, Lorenzo de', 1600-1648
- 15 Medicine
