O - Opportunity

Obesity-Montana

Obituaries

OCLC (Cooperative Online Catalog); (Montana Shared Catalog)

O’Fallon Historical Society, Baker, MT

Oil & Gas Leases

Oil Drilling, Etc.

Oil Industry-Montana

Oil Refineries-Montana

Oilmont, MT

Oka, MT

Oklahoma Historical Society

Old Age Pensions

Old Agency, Teton County

Old Brewery Theatre, Helena, MT (Programs are in printed ephemera file)

Old Forts Trail

Old North Trail

Old Time Fiddlers

Old Times’ Association of Park County

Old Town, Great Falls, MT

Old West Gallery, Miles City, MT

Old West Trail

Ollie, Fallon County, MT

Olmsted County Historical Society, Rochester, Minnesota

Olympic Games

Omaha Trans Mississippi Exposition, 1898

O-Mok-See

One Book Montana

O’Neil Lumber Company, Kalispell, MT

Ontario Mining Company, Inc., Helena, MT

Onyx Marble

Opera in Montana

Opheim, MT

Ophir Cave

Ophir, MT

Opinion Polls

Opium

Opossum

Opportunity

Oral History Association - Oysters

Oral History Association

Oral History-Montana

Order of the Indian Wars

Oregon Historical Society, Portland, Oregon

Oregon-History

Oregon Short Line Railroad

Oregon Trail

Oregon Trail Memorial Association

Organic Act (creation of Territory of MT)

Organic Food-Montana

Organs

• SA: Pipe Organs

Original Briefs-Hardin, MT

Oro Fino Gulch

Oro Fino Terrace, Helena, MT

“Orphan Trains”

Orphanages-Montana

• St. Thomas-Great Falls
• St. Ann’s-Helena
• St. Joseph’s –Helena

Orr Mansion, Dillon, MT

Osprey

Oswego, MT

Otter Creek, MT

Our Lady of the Rockies

Outhouses

Out in Montana

Outlaws

Outlook, MT

Ovando, MT

Owl Creek Press

Owls

Ox Bow Ranch

Oxen

Oysters

P - Pittsburgh Block

P.N. Ranch, Fergus County-at mouth of the Judith

• SA: Judith Landing

Philipsburg, MT Description-1960

PPL of Montana-Purchaser of Montana Power

P.S. - A Partnership

• Linda Peavey
• Ursula Smith
• SA: Women in Montana

Pablo, MT

Pacific Northwest Historians Guild

Pacific Northwest History Conference 1954-1993

Pacific Northwest Indian Center, Spokane, WA

Pacific Northwest Library Association

Pacific Northwest Wool Growers’ Association, Helena, MT

Pacific Power & Light Company

Pacific Railway Survey Northern Route 1853, Issac Stevens

Paddlefish

Painted Rocks Dam-Ravalli County, MT

Paiute Indians

Paleontology-Big Horn County, MT

• Blaine County, MT
• Carbon County, MT
• Carter County, MT
• Dawson County, MT
• Fergus County, MT
• Garfield County, MT
• Lewis & Clark County, MT
• Madison County, MT
• Park County, MT
• Phillips County, MT
• Powder River County, MT
• Powell County, MT
• Teton County, MT
• Valley County, MT

Palomino Horses

Paper-Preservation

• Bibliography

Paper Money-United States

Paradise Dam

Paragon, MT

Paratroopers

• SA: First Special Force

Parchen Building, Helena, MT

Pardee, MT

Paris Gibson Square, Great Falls, MT

Park City, MT (Lewis & Clark County)

Park County, MT History

Park County Pioneers Society, Livingston, MT

Park County Museum, Livingston, MT

Park County, MT- Description & Travel 1970

• Schools

Park County Historical Society, Livingston, MT

Park County Environmental Council

Park County Fair, Livingston, MT

Park ditch-Park Lake, Unionville, MT

Park Grove, MT

Parker Homestead State Park

Parliamentary Table

Parrott Confectionary, Helena, MT

• SA: Helena, Confections

Parrot Lode, Butte, MT

Parson’s Bridge, Madison County, MT

Pasta Montana, Great Falls, MT

Pasties

Patagonia

Patents

Patriot Act-Montana

Patriotism-Montana

Pauper’s Dream-Film

Pauper’s Dream Mine

Paws Up Resort, Greenough, MT

Peace Corps

Peace Movement

Pealow Ivory Collection, Montana-Tech Library

Pearl Mine, Granite County, MT

Peat Moss

Pedestrians

Peerless, MT

• AKA: Tande

Pegasus Gold Corp.

• SA: Zortman, MT

Pelicans

Pencil Sketches of Montana (Photocopies)

Pendroy, MT

Penobscot Mine, Lewis & Clark County, Mt

Pensioners, Military-Montana, 1883

People’s Voice (Newspaper)

Peregrine Falcons

Perma, MT

Pesticides (Clippings)

Petrified Man

Petroglyph “Faces on the Rim”

Petroglyph “Hoof Print Boulder”

Petroglyphs

Petroleum County, MT History

• Schools

Petroleum Industry & Trade-Cat Creek

• Cut Bank Field
• Elk Basin
• History (3 folders)
  • SA: L.C. Stevenson, Gordon Campbell, Kevin-Sunburst
• Kevin – Sunburst Field
• Lake Basin
• Pipelines
• Refining
• Roosevelt County
• Statistics
• Toole County
• Williston Basin
• Teton County

Pharmacy-Montana

Pheasants

Philadelphia, PA Centennial Esposition-1876

Philanthropic Educational Organization (PEO)

Philbrook, MT

Philipsburg, MT-Govt. 1970’s

Philipsburg, MT – History

• Mines & Mining
• Tourism

Philipsburg Pioneer Association

Philippines – History – Insurrection 1898-1903, 1915

• SA: United States – History – War of 1898
• First Montana Volunteers

Phillips County Historical Society, Malta, MT

Phillips County, MT History

• Hospitals
• Local Government
• News, Malta, MT
• Schools

Phillips Petroleum Company, Great Falls, MT

Phoebe Apperson Hearst Free Library Lead, South Dakota

Phoenix Letter

Phonograph

Phonograph Records

Phosphate

Photographers

Physicians

• Flathead County
• Great Falls, MT
• Montana

Pianos

Pick & Plow (Newspaper) Bozeman, MT

Pictograph Caves

Picture Writing, Indian

• Flathead Lake
• Gallatin County
• Lewis & Clark
• Rosebud County
• Sanders County

Piegen Institute

Piegans

Pierre’s Hole

Pies

Pig Eye Basin

Pike Dredging & Amalgamating Company of Montana

Pine Butte Swamp Reserve

Pine Grove, MT

Pine Ridge Indian Reservation, S.D.

Pinesdale, MT

Pineview, MT

Piniele, MT

Pink Reporter

Pinkerton’s National Detective Agency, Inc.

Pioneer Cabin, Helena, MT

Pioneer Creek, MT

Pioneer Day

• Essay Contest Winning essays-1957-58

Pioneer Historical Circle, Circle, MT

Pioneer, MT

• AKA: Pioneer City

Pioneers of Eastern Montana

Pioneers of Montana

Pioneer Playhouse, Billings, MT

Pioneer Trail

Pipestone Hot Springs / Pass

Pittsburgh Block, Helena, MT

Place Names - Pyrite

Place Names – Beaverhead County

• Cities & Towns
• Counties
• Crow
• Madison
• Physical Features (Missoula, Flathead, Bitterroot)

Placer Mining – Silver Bow County

Placid Lake

Plagiarism – Montana

Plains Historical Society, Plains, MT

Plains, MT

Plan Helena

Planned Parenthood

Plants

Platinum

Plays

• Lady Minstrels; Elks Minstrels

Plenty Coups

Plenty Coups State Park, Pryor, MT

Plentywood, MR – History

• SA: Yearnings

Plentywood Producer’s News (Newspaper)

Plovers

Plum Creek Lumber Company, Columbia Falls

Plywood

Poaching

Poems (8 folders)

• SA: “Montana Poets Hall of Fame”
• “Zikorski, Jack”

Point of Rocks, MT

• SA: Beaverhead Rock

Poet Laureate – Montana

Polaris, MT

Polebridge, MT

Police Chiefs

Polio

Political Cartoons

Political Economy Research Center (PERC), Bozeman, MT

Political Slogans – Montana

Politics & Government – Bibliography

Politics & Government

Polk & Company, R.L., Helena, MT

Pollution

Polson – Flathead Historical Museum, Polson, MT

• AKA: Miracle of America Museum

Polson, MT – Description

• Historical Pageant 1953
• History
• Hospitals

Pompey’s Pillar

Pondera County Association for Mental Health, Conrad, MT

Pondera County, MT – Historical Pageant 1953

• History
• History Association
• Local Gov’t Study Commission

Ponderosa Pine

Pony Express, 1860-1861; 1861-1868 Montana

Pony, MT

Pool Games

Poor Laws – Forms

Poplar, MT

• Description 1950
• Oil Discovery Celebration
• Museum

Populist Party

Portland, OR

Post Cards

Post Creek, MT – Historical Pageant 1947

Post Roads

Postage Stamps

Postal Service (2 folders)

Potomac, MT

Potatoes

Potosi Hot Springs, MT

Pottery

Poultry

Poverty

Powder River County Bank, Broadus, MT

Powder River County Democratic Central Committee

Powder River County Homemakers

Powder River County, MT – History

• Museums
• Post Office
• Roads
• Schools

Powder River Depot (Prairie County)

Powder River Expedition -1865, 1876

Powder River, MT

Powder River Soil Conservation District

Powderville, MT

Powell County – Description 1950

• History
• Hospitals
• Museum, Deer Lodge, MT
  • Towe Ford Collection

Power, MT

Power Townsend Elevator Company, Helena, MT

Pow-Wows

Pozzlan

Prairie County, MT – History

• Hospitals
• Museum, Terrie, MT
• Schools

Prairie Dogs

Prairie, Protection of

Prairie Town Museum, Geraldine, MT

Pray, MT

Prayers

Predators

Premiere Dance Company, Helena, MT

Presbyterian Church

• Bozeman, MT
• Corvallis, MT
• Dillon, MT
• Ft. Kipp, MT
• Great Falls, MT
• Helena, MT Central
• Helena, MT First (2 folders)
• Helena, MT Second
• Kalispell, MT
• Glacier, MT
• Missoula, MT
• Southern Cross, MT
• White Sulphur Springs, MT
• Wolf Point, MT

Presidents – U.S.

Press, The Helena, MT

Preston, MT

Prices – U.S.

Prickly Pear Land Trust

Prickly Pear Valley, MT

Priest Butte, Teton County

• AKA: Priest’s / Priests’ Butte

Priest Pass

Printing Presses

• SA: Publishers & Publishing

Prisoners of War – Montana

Privacy, Rights to – Montana

Proctor, MT

Progressivism

Prohibition

Project Vote Smart, Philipsburg, MT

Project Excellence

Property Tax

Prostitution

Protestant Episcopal Church - Diocese of Montana

Protestant Episcopal Church

• Billings, MT
• Dillon, MT
• Great Falls, MT
• Helena, MT
• Pine Grove, MT
• Virginia City, MT

Protestantism – Bibliography

Pryor, MT

Public Defenders – Montana

Public Health League of Montana

Public Health – Helena, MT

• Montana

Public Lands

• SA: Homesteading – Legislation Land Tenure

Public Utility Districts

Public Utilities – Law & Legislation

Publishers & Publishing

• SA: Printing Press

Pulitzer Prizes

Puppets

Purgatory Hill - McCone County

Pyrite