- University of Montana--Missoula. Mansfield Library18,635
- Montana State University--Bozeman18,139
- State Historical Society of North Dakota11,660
- Montana Historical Society Research Center7,308
- Big Horn County Library and Big Horn County Genealogical Society5,153
- Lewistown Public Library, Lewistown, Montana4,464
- MSU Billings Library3,749
- North Dakota State Library3,453
- World Museum of Mining2,642
- Rocky Mountain College, Paul M. Adams Memorial Library2,457
- Billings Public Library1,967
- Bismarck Veterans Memorial Public Library1,960
- Fort Peck Tribal Library1,607
- Yellowstone National Park Heritage and Research Center1,018
- Darby Community Public Library724
- Carter County Museum557
- Glacier National Park407
- Range Riders Museum, Inc. and Miles City Star381
- Theodore Roosevelt Center at Dickinson State University362
- Rocky Mountain Laboratories353
- Butte-Silver Bow Public Archives333
- University of Montana Western300
- Yellowstone Historic Center297
- State Law Library of Montana252
- Lewis and Clark County226
- Miles City Public Library221
- Huntley Project Museum of Irrigated Agriculture212
- Montana State Historic Preservation Office202
- Museum of the Beartooths, Stillwater County, Columbus, MT199
- Yellowstone Art Museum Library183
- The Historical Museum at Fort Missoula173
- Chouteau County Library155
- Museum of the Rockies103
- North Lake County Public Library, Polson, Montana103
- Bozeman Public Library99
- Hellgate High School96
- Big Sandy High School91
- Glacier County Library86
- Lewis & Clark Library; GFWC85
- Montana State University--Bozeman. Associated Students85
- Rosebud County Library83
- University of Montana-Missoula. Mansfield Library82
- Blaine County Library81
- Carter County Museum; Carter County High School (CCHS)81
- https://creativecommons.org/licenses/by-nc-nd/4.075
- Conrad Public Library74
- Range Riders Museum, Inc73
- University of Montana—Missoula72
- Garfield County Free Library71
- Augusta Area Historical Society Museum; Lewis & Clark Library Augusta Branch70
- ImagineIF Libraries, Flathead County70
- Butte-Silver Bow Public Library69
- Wedsworth Memorial Library69
- Carter County Museum, Tooke Bucking Horses66
- Toole County Library66
- Fallon County Library65
- Big Timber Carnegie Public Library64
- Choteau High School Library64
- Beaverhead County Museum63
- Upper Musselshell Museum61
- Valier Public Library59
- Drummond School and Community Library58
- Missoula County Public Schools55
- Vande Bogart Library, Montana State University-Northern54
- Sheridan County Library53
- Missoula Public Library52
- Seeley-Swan High School Library49
- Hearst Free Library; Copper Village Museum and Art Center45
- Carroll College, Helena, Montana41
- Roundup Community Library39
- Yellowstone Gateway Museum37
- Upper Swan Valley Historical Society35
- Dillon Public Library34
- Museum of the Beartooths, Stillwater County, MT34
- Judith Basin County Free Library31
- Montana Tech Library, Montana Tech of The University of Montana31
- Museum at Central School30
- Hobson Library27
- Cascade County Historical Society; The History Museum24
- Bicentennial Library of Colstrip23
- Liberty County Library20
- North Jefferson County Library19
- Old Trail Museum12
- Sidney-Richland Public Library10
- State Law Library of Montana; Montana Historical Society Research Center5
- Valley County Historical Society4
- Cascade County Historical Society; Cascade County Historical Society/The History Museum3
- Conrad Transportation and Historical Museum2
- Madison Valley Public Library2
- Bridger Canyon Women's Club1
- Gallatin History Museum1
- Liberty County Museum and MSU Liberty County Extension1
- Northwest Montana Chapter of the Forest Fire Lookout Association Oral History Project, OH 453, Archives and Special Collections, Mansfield Library, University of Montana-Missoula1
- Winifred Museum1
