Organization Iowa National Guard

St. Cloud State University

Southern Pacific Railroad

Lexington Group for Transportation History (president)

Lea College

Wayland College

Southern Pacific Transportation Company

Burlington Northern, Inc.

University of Montana

Augustana College

Organization of American Historians

Western History Association

Railway and Locomotive Historical Association

National Railway Historical Association

State Historical Society of Iowa

Texas Historical Society

Phi Alpha Theta

Phi Delta Kappa