Photo by Carlos Seligo

I am a historian of twentieth-century United States history, with a focus on digital and computational history, urban environmental politics, the North American West, and spatial methods. I am the Digital Engagement Librarian and Assistant Professor of History at the University of Nebraska at Omaha, where I lead initiatives in digital engagement and public history with campus and community partners. I am also affiliated faculty with UNO’s Center for Urban Sustainability and a Researcher with Stanford University’s Spatial History Project. This website lists scholarship I can make available, including works in progress; a full listing can be found in my CV. I often write here on my blog and contribute to the BlogWest group blog.

I also work on bicycle advocacy projects both on campus and in the community, like Omaha Bikes, the Omaha Bike Network, the League of American Bicyclists, People for Bikes, and Mode Shift Omaha.

To keep updated on my work, follow my research, follow me on Twitter or Github, or subscribe to the blog. Feel free to email me at

Suburban by Nature: Environmental Politics and the Imagining of Silicon Valley

My first book, currently being revised and tentatively titled Suburban by Nature: Environmental Politics and the Imagining of Silicon Valley, explores the postwar growth of the cities in Silicon Valley and the ways that their growth not only led to ecological disaster but introduced social inequality that fueled an environmental critique that shaped liberal, conservative, and environmental politics. Suburban by Nature looks at how local communities confronted environmental challenges and traces the shifts in political activism in the late 20th century U.S.

Machines in the Valley: Urban Growth and Environmental Politics in Silicon Valley

Machines in the Valley explores how urban growth shaped environmental politics in Silicon Valley during the post-World War II era. The digital project contains visualizations, data, and narrative stories that explores the historical relationship between the economic and urban development of Silicon Valley and the environmental reactions communities had to the reshaping of the region. The project serves as a digital companion to my book.

Geography of the Post

Spatial History Project, Stanford University

The U.S. postal system was the nation’s largest communications network in the nineteenth century. By the close of the century the U.S. Post had extended its reach into nearly every city, town, and hamlet in the country. No other public institution was so ubiquitous and so central to everyday life; dropping off a letter or checking for mail at the local post office was a ritual shared by millions of Americans from Connecticut to Colorado. This visualization maps the spread of the postal network on its western periphery by charting the opening and closing of more than 14,000 post offices west of the hundredth meridian.

Upcoming Talks and Public Appearances

Preserving Histories Digitally
Information Exchange, Omaha, Nebraska: March 17, 2017

'Don't Let Industry Do its Business In Our Water!!!': Urban Space and Environmental Politics in Silicon Valley.
Ball State University, Muncie, Indiana: April 12, 2017

Keynote: Approaching a New Historical Atlas of Midwestern History with Deep Maps and Digital History
Midwestern History Association, Grand Rapids, Michigan: June 7, 2017

Mapping Silicon Valley
Digital Humanities 2017, Montreal, Canada: August 9, 2017

Arguing with Digital History
George Mason University: September 15, 2017 - September 16, 2017

Mobile Digitization Lab for Rural Community Archives
LYRASIS Member Summit, Philadelphia, Pennsylvania: October 11, 2017

Oskate Wicasa, Progressive Thought, and the Digital Publics of Buffalo Bill's Wild West
Western History Association, San Diego, California: November 3, 2017

Contact me about speaking at your institution!

Publications and Projects

“A National Monument,” with Douglas Seefeldt. The Companion to Custer and the Little Big Horn (Hoboken: Wiley and Sons) (2015)

“Crowdsourcing Public Digital History,” with Gabriel K. Wolfenstein. The American Historian (2015)

“A Call to Redefine Historical Scholarship in the Digital Turn,” with Alex Galarza and Douglas Seefeldt. The Journal of Digital Humanities vol. 1, no. 4 (2012)

Find more of my publications and projects.


“superfundr: Superfund Datasets.” R package. 2017–. Github


American Historical Association
American Historical Association: Spring 2018

University of Nebraska at Omaha
University of Nebraska at Omaha: Spring 2018

Introduction to Network Analysis (workshop)
Ball State University: Spring 2017

Introduction to Network Analysis (workshop)
American Historical Association: Spring 2017

R, Interactive Graphics, and Data Visualization
Digital Humanities Summer Institute: Summer 2016

Maps and Networks in the Classroom (workshop)
Carl Bimson Humanities Seminar, Colorado State University: Summer 2016

Teaching Digital History (workshop)
Missouri Valley History Conference: Spring 2015

Digital History: Sources, Methods, Problems
Stanford University: Fall 2014

Contact me about teaching a workshop at your institution!

Recent Writings