Machetes
Machine guns
Machine shops
Machinery
Machinery components
Machinery industry
Machismo
Macrophotographs
Madonnas
Madrasahs
Magazine covers
Magazine publishing industry
Magazines (Military buildings)
Magen David
Magic
Magical devices
Magicians
Magnetic healing
Magnets
Magnolias
Magpies
Mah jong
Mahogany trees
Mail-order businesses
Mail sleds
Mail steamers
Mail trucks
Mail wagons
Mailboxes
Maine
Mainstreaming in education
Maintenance & repair
Malaria
Male figure drawings
Malnutrition
Mammals
Mammography
Mammoth plates
Mammoths
Mandolins
Mangrove plants
Manhole covers
Manholes
Manicuring
Manila hemp
Mannequins
Manners & customs
Mansard roofs
Mansions
Mantels
Manufacturers' catalogs
Manure
Manuscripts
Map cases
Map making
Maple sugar industry
Maples
Maps
Maquettes
Marabouts
Maracas
Marathon running
Marathons
Marble
Marble quarrying
Marble workers
Marbles (Game)
Marching
Marching bands
Marching percussion
Margarine
Marijuana
Marine accidents
Marine biology
Marine drawings
Marine hospitals
Marine paintings
Marine photographs
Marine prints
Marine terminals
Marines (Military personnel)
Marines (Visual works)
Marker works
Markets
Marks (Symbols)
Marmots
Marooned
Marquees
Marriage
Marriage certificates
Marriage licenses
Marriage proposals
Martello towers
Martial arts
Martial law
Martyrs
Maryland
Mascots
Masks
Masochism
Masonic buildings
Masonry
Masquerades
Mass burials
Mass transit
Massachusetts
Massacres
Massage
Masseurs
Mastodons
Match industry
Matchcovers
Matches
Materials
Maternity clothes
Maternity hospitals
Mathematicians
Mathematics
Matzos
May poles
Mayors
Mazes
McCarthyism
Meadows
Measles
Measured drawings
Measuring
Meat
Meat cutting
Meat industry
Meat industry strikes
Mechanical drawings
Mechanical spring industry
Mechanical systems
Mechanical systems components
Mechanical systems drawings
Mechanical toys
Mechanical works
Mechanics (Persons)
Medallions (Ornament areas)
Medals
Medicaid
Medical aspects
Medical aspects of war
Medical education
Medical equipment & supplies
Medical examinations
Medical illustrations
Medical libraries
Medical offices
Medical personnel
Medical screening
Medical students
Medicare
Medicinal plants
Medicine
Medicine shows
Medicines
Meditation
Mediums
Medlar trees
Meetings
Megalethoscope prints
Megaphones
Melodramas
Melons
Membership campaigns
Membership cards
Membership certificates
Memorabilia
Memorial arches
Memorial photographs
Memorial rites & ceremonies
Memorial works
Men
Mennonite churches
Menopause
Menorahs
Mental health
Mental institutions
Mental states
Mentally handicapped children
Mentally ill children
Mentally ill persons
Menus
Mercantile facilities
Mercenaries (Soldiers)
Merchandise displays
Merchandise exchanges
Merchants
Merchants' exchanges
Mercury mining
Mermaids
Merry-go-rounds
Mesas
Meshrebeeyehs
Mess halls
Messengers
Metal buildings
Metal cuts
Metallurgical industry
Metalpoint drawings
Metals
Metalwork
Metalworkers
Metalworking
Metamorphic pictures
Metamorphosis
Meteorological instruments
Meteorology
Meteors
Methodist churches
Methodist Episcopal churches
Metronomes
Mezzanines
Mezzotints
Mica mining
Mice
Michigan
Microfiche
Microfilms
Microforms
Microopaques
Microorganisms
Microphones
Microphotographs
Microscopes
Microwave ovens
Middle age
Middle class
Midlife crisis
Midways
Midwives
Migrant agricultural laborers
Migrant laborers
Mihrabs
Milestones
Militarism
Military academies
Military air pilots
Military air shows
Military art & science
Military assistance
Military bands
Military camps
Military cookery
Military decorations
Military demobilizations
Military depots
Military deserters
Military discharges
Military education
Military exchanges
Military facilities
Military headquarters
Military hospitals
Military inspections
Military intelligence
Military leadership
Military life
Military maneuvers
Military medicine
Military mobilizations
Military occupations
Military officers
Military organizations
Military parades & ceremonies
Military personnel
Military police
Military policy
Military rations
Military reconnaissance
Military regimes
Military reservations
Military retreats
Military scouts
Military service
Military spouses
Military standards
Military tactics
Military training
Military uniforms
Military vehicles
Militia movements
Militias
Milk
Milking
Milkmen & milkwomen
Milkweeds
Millenialism
Millers
Millet
Millinery
Milling machines
Millionaires
Millraces
Mills
Millwork
Mimetic buildings
Minarets
Minbars
Mine accidents
Mine buildings
Mine railroad cars
Mine railroads
Mine rescue work
Mine warfare
Mineral deposits
Mineral waters
Minerals
Miners
Miners' strikes
Miners' unions
Mines (Weapons)
Miniature cities & towns
Miniature golf
Miniature railroads
Miniature wood carvings
Miniature works
Miniatures (Illuminations)
Miniatures (Paintings)
Minimum wages
Mining
Mining camps
Mining equipment
Miniskirts
Minks
Minnesota
Minorities
Minstrel shows
Minstrels
Mints
Minuets
Minutemen (Militia)
Miracles
Mirages
Mirrors
Miserliness
Misers
Missiles
Missing in action
Missing persons
Mission churches
Missionaries
Missions
Mississippi
Missouri
Mistletoe
Mists
Miters
Mittens
Mixed media
Mizriha'ot
Moats
Mobile health units
Mobile home living
Mobile homes
Mobiles
Mock-ups
Model airplanes
Model cars
Model houses
Model railroads
Model sailboats
Model ships
Model submarines
Model vehicles
Modeling (Sculpture)
Models
Modern dance
Modular construction
Molded plywood
Moldings
Molds (Shaping tools)
Molecular models
Moles (Animals)
Molotov cocktails
Monarchy
Monasteries
Monastic & religious life
Monetary policy
Money
Mongooses
Monkeys
Monks
Monochromatic works
Monocles
Monograms
Monoplanes
Monopolies
Monorail railroads
Monotypes
Monsters
Monstrances
Montages
Montana
Months
Monument builders
Monuments
Monuments & memorials
Moon
Moonlight
Mooring
Mooring masts
Moose
Moose hunting
Mops & mopsticks
Moral & ethical aspects
Moral aspects of war
Moravian churches
Morgues & mortuaries
Mormon churches
Morning
Morning glories
Mortarboards (Caps)
Mortars & pestles
Mortars (Ordnance)
Mortgages
Mortuary practice
Mosaic pavements
Mosaics
Mosques
Mosquitos
Motels
Mothers
Mothers-in-law
Moths
Motion picture audiences
Motion picture cameras
Motion picture devices
Motion picture festivals
Motion picture industry
Motion picture posters
Motion picture premieres
Motion picture producers & directors
Motion picture production & direction
Motion picture studios
Motion picture theaters
Motion pictures
Motion sickness
Motion study photographs
Motor scooters
Motorboats
Motorcades
Motorcycle clubs
Motorcycle racing
Motorcycle rallies
Motorcycles
Motorcyclists
Mounds (Burials)
Mounds (Landforms)
Mountain goat hunting
Mountain goats
Mountain railroads
Mountain roads
Mountain sheep
Mountain sheep hunting
Mountaineering
Mountains
Mounted police
Mourning clothing & dress
Mourning jewelry
Mousetraps
Mouth organs
Mouths
Movable feasts
Moving & storage trade
Moving of structures
Mowing
Mowing machines
Muckraking
Mucus
Mud
Mud baths
Mud volcanoes
Mulberry trees
Mules
Muleteers
Mullahs
Multiple sclerosis
Multiscreen presentations
Mummies
Mumming
Municipal government
Municipal home rule
Municipal officials
Municipal services
Murals
Muscles
Mushroom clouds
Mushrooms
Music
Music boxes
Music education
Music ensembles
Music festivals
Music halls
Music publishing industry
Music rooms
Music stands
Music stores
Music title pages
Musical instrument cases
Musical instrument industry
Musical instruments
Musical notation
Musical revues & comedies
Musicians
Musicians' unions
Musk deer
Musketeers
Muskox
Muskox hunting
Mustaches
Mustard
Mute persons
Mutinies
Mynahs
Myths