Part 1 (M95-226): Original Collection, 1929-1980
Physical Description: 7.5 cubic feet (4 record center cartons, 2 archives boxes, 10 flat boxes, and 1 roll) and 97 photographs and 70 negatives (in 1 archives box) 
Scope and Content Note: Included are research files collected between about 1972-1979 and organized by county and by subject; signal location plans for the Chicago, Milwaukee, St. Paul & Pacific Railroad Company; correspondence with other researchers with bulk dates between 1970-1980; and county maps and U.S. Geological Survey quadrangle sheets annotated with railroad information compiled by Kaysen. Also part of the collection is Kaysen's senior thesis, 1932-1933, concerning trackage in Madison; a copy of his book, A Statistical History of Wisconsin Railroads, 1847-1936; and photographs of railroad tunnels throughout the state and of railroad bridges over the Wisconsin, Kickapoo, and Mississippi rivers.

Series: County Research Files, bulk 1972-1979

Adams County-Kewaunee County

La Crosse County-Vilas County

Walworth County-Wood County

Canada

Iowa

Michigan

Missouri

Tennessee

United States

United States transportation zone maps

Wisconsin

Series: Correspondence, bulk 1970-1980

Abbey, Wallace W.

Banta, George

Miscellaneous

Miscellaneous and newsletters

Robinson, Dick

State Historical Society of Wisconsin (SHSW)

James P. Kaysen's book - railroads of Wisconsin

Revision of Wisconsin Railroad Bulletin

Series: Subject Files, 1940s-1980s

Abandonment

Abandoned carriers

Abandonment publications

Aerial photos/mapping

Bridges and dams

Geology

Highways

Manufacturers

Power plants

Tunnels

Series: Maps and Mapping

United States Geological Survey (USGS) maps

Wisconsin USGS mapping

Maps (order forms, etc.)

Wisconsin Mapping Bulletin

Wisconsin county maps, A-W

Bayfield County, Douglas County, Wisconsin Mineral Survey

Wisconsin railroad mapping

Wisconsin railroads

Wisconsin railroad maps

A Statistical History of Wisconsin Railroads, 1847-1936
Note: See also map of Wisconsin railroad abandonments, 1933, box 7, folder 1.

Senior thesis and other course work, 1932-1933

Wisconsin Development of Steam Railroads and County Boundaries
Physical Description: 1 volume 

Wisconsin railroad abandonments, 1933

USGS Wisconsin quadrangle maps

Abbotsford-Amnicon Point

Aniwa-Augusta West

Augustine Lake-Bavaria

Bay City-Big Falls Dam

Big Round Lake-Blue River

Boaz-Bruce

Brule-Castle Rock

Cataract-Clam Lake

Clam Lake NE-Coloma SW

Columbia-Cutler

Dairyland-Dodgeville

Doering-Eden

Edgar-Ettrick

Eureka-Frog Lake

Falun-Genoa City

George Lake-Graytown

Green Bay East-Hartland

Hastings-Hillsboro

Hixton-Ingram

Institute-Julia Lake

Junction City-Knapp

Krakow-Lake Poygan

Lake Six-Little Prairie

Little Rose-Luck

Lugerville-Marinette West

Marion-Mead Lake

Medford-Mikana

Milan-Montello

Montfort-Muscoda

Namekagon Lake-New Miner

New Post-Oconomowoc West

Oconto East-Owen

Outer Island-Pike Lake

Pine Lake-Poplar

Poplar NE-Princeton West

Pulaski-Rewey

Rib Lake-Rock Dam Lake

Rock Falls-Sanborn

Sand Creek-Sheboygan South

Sheldon-Spaulding

Spencer North-Steuben

Stevens Point-Sussex

Swanson-Town Corner Lake

Townsend-Vesper

Viroqua-Waupun South

Wausau East-Weyauwega

Weyerhauser-Wisconsin Rapids North

Wisconsin Rapids South-Zoar

Senior thesis drawings

1A - Waubesa Yard (location map)

3A - West Washington Avenue district

4A - Illinois Central relocation

5A - Joint passenger terminal

6A - Grade crossing elimination

7A - Centralized traffic control

1B - Waubesa Yard (general plan)

2B - University District grade separation

4B - Illinois Central (IC)-Chicago and North Western (C&NW) connection near summit

6B - Grade crossing elimination

2C - Maximum cut sections - University District grade separations

4C - Madison terminals

Series: Photographs
Physical Description: 97 prints and 70 negatives 
Scope and Content Note: Images of Wisconsin tunnels (including abandonments) mainly of the Chicago, Milwaukee, St. Paul and Pacific railroad (CMStP&P), C&NW, and IC railways made by Kaysen, May 1964 - May 1975. Also included is a negative and print of the CMStP&P tunnel at La Farge, summer 1929.
Arrangement of the Materials: Currently arranged by year (Mr. Kaysen's arrangement); most of the prints and negatives have identifying information written on them.

Part 2 (M96-015): Additions, 1922-1979
Physical Description: 1.4 cubic feet (2 archives boxes and 2 card file boxes) and 90 photographs 
Scope and Content Note: Additions, 1922-1979, including correspondence; Kaysen's lectures on roads and pavements; miscellaneous research material; a railroad map of Wisconsin and information about the other maps compiled by Kaysen; signal location plans of the Chicago, Milwaukee, St. Paul, and Pacific Railroad Company (CMStP&P) plus a map showing supervisor territories and memos regarding staff assignments; and photographs, 1929-1931, which include images of Kaysen and other members of the crew working on the paving of State Highway 75 (1931); railroad facilities of the CMStP&P; railroad bridges over the Mississippi, Wisconsin, and Kickapoo rivers; and views of various Wisconsin towns and cities, including Platteville, Prairie du Chien, La Farge, and Boulder Junction, among others.

Correspondence

Corrigan, George A.

Mullen, Oakman

Empey, L.W.

Railroad map of Wisconsin

Information on maps compiled by Kaysen

Lectures - Roads and Pavements, 1932

Miscellaneous research material

Chicago, Milwaukee, St. Paul and Pacific (CMStP&P) Railroad Company, Telegraph-Signal Department

Memos regarding staff assignments

Map showing territories of supervisors

Wisconsin Highway Commission publications for employees

Marking and Signing Manual, 1927

Highway Location and Surveying, 1922

Railroad covered bridges, clippings

“Maps of Northeastern Wisconsin” booklet compiled by Kaysen and map of Vilas County showing railroads, abandonments, etc., drawn by Kaysen

Miscellaneous

Signal location plans

Montevideo-Aberdeen

Rondout, Illinois-Janesville, Wisconsin

West Clinton-Belt Junction, Indiana

Black River Junction-Tacoma

Cle Elum-Maple Valley

Othello-Cle Elum

Marengo Junction-Novara

Carlton-Superior

South Minneapolis-St. Louis Park

Shermer-Tower A-20

Aberdeen-Mobridge

Mobridge-Marmarth

Marmarth-Miles City

Austin-Faribault

Tower B-17 - Brynmawr

Chicago-Bensenville-Sabula

Faithorn-West Clinton

North Milwaukee-Green Bay

St. Louis Park-Montevideo

Stowell-North Milwaukee

Tower A-5, Illinois-Stowell, Wisconsin

Faribault-Mendota, Minnesota

Deer Lodge-Alberton

Three Forks-Sinclair

Harlowton-Deer Lodge

Grand Avenue-Portage

Argo-Seattle

Plummer Junction-Manito

St. Maries-Sorrento

Spokane, Washington

Alberton-Avery

Avery-St. Maries

La Crosse-Newport

Washington St.-Elm Grove

North Milwaukee, Wisconsin

Miles City-Melstone

Sturtevant-Kittredge

Cle Elum-Seattle

Melstone-Harlowton

Perry-Council Bluffs

Marquette-Mason City, Iowa

Laredo-Sheffield, Missouri

Culver-West Yard

Yankton-Napa, South Dakota

Manilla-West Yard

Forreston-Samoa

Atkins-Perry

Watertown-Madison

Portage-La Crosse

Sabula-Clinton

Photographs, circa 1929-1931
Scope and Content Note: Photographs document the paving of State Highway 75 in 1931, and include images of Kaysen and other members of the crew, equipment, and activities; railroad facilities of the Chicago, Milwaukee, St. Paul & Pacific Railroad Company; railroad bridges over the Mississippi, Wisconsin, and Kickapoo Rivers; and various Wisconsin cities, including Platteville, Prairie du Chien, La Farge, Gays Mills, Mineral Point, Marquette, and Boulder Junction. There are also a few news clippings.

Part 3 (M2002-033): Additions, 1965-1979
Physical Description: 0.2 cubic feet (1 archives box) 
Scope and Content Note: Additions, 1965-1979, consisting of correspondence with Harvey Huston (1965-1979) and Richard Robinson, Geologist with Wisconsin Department of Transportation Division of Highways (1973), and Railroads of Ashland County, Wisconsin by Kaysen (1973).