Rabineau, Phyllis -Chicago Historical Society
Rabinowitz, Howard N. -University of New Mexico
Radano, Ronald -University of Wisconsin–Madison
Radford, Gail -University at Buffalo, SUNY
Raffensperger, John -Chicago, IL
Raleigh, Chas. P. -Elmhurst, IL
Ralph, James -Middlebury College
Reed, Christopher R. -Roosevelt University
Rees, Jonathan -Colorado State University–Pueblo
Reiff, Janice L. -University of California, Los Angeles
Reithmaier, Tina -Newberry Library
Reynen, Christina A. -Newberry Library
Rhein, John von -Chicago Tribune
Riess, Steven A. -Northeastern Illinois University
Riippa, Timo -Immigration History Research Center
Robinson, Jontyle Theresa -Independent scholar
Robinson, Marilyn -Batavia, IL
Rodriguez, Karen M. -USEPA Great Lakes National Program Office
Roeder,, George H. -School of the Art Institute of Chicago
Roediger, David R. -University of Illinois at Urbana-Champaign
Roell, Craig H. -Georgia Southern University
Rose, Patricia Krone -Concordia University
Rosemont, Franklin -Charles H. Kerr Publishing Company
Rosemont, Penelope -Charles H. Kerr Publishing Company
Rosen, Howard -University of Wisconsin–Madison
Rosswurm, Steve -Lake Forest College
Rotella, Carlo -Boston College
Rousmaniere, Kate -Miami University
Rubin, Eli -University of Wisconsin–Madison
Ruck, Robert -University of Pittsburgh
Rugh, Susan Sessions -Brigham Young University
Rury, John L. -University of Kansas
Russick, John -Chicago Historical Society
Ruth, David E. -Pennsylvania State University, Abington
Rydell, Robert W. -Montana State University