2. Correspondence and Subject Files, alphabetical
- UADR 18/49 Folder : Roh - Ror 1924-1929
- UADR 18/50 Folder : Rosb - Rose 1924-1929
- UADR 18/51 Folder : Ross - Rosu 1925-1929
- UADR 18/52 Folder : Rot - Row 1919-1929
- UADR 18/53 Folder : Roy - Roz 1926-1927
- UADR 18/54 Folder : Rub - Rud 1922-1929
- UADR 18/55 Folder : Rus 1925-1929
- UADR 18/56 Folder : Rut - Ruz 1921-1927
- UADR 18/57 Folder : Ryan, E. - Ryan, Ja. 1925-1929
- UADR 18/58 Folder : Ryan, Jo. - Ryan, V. 1924-1929
- UADR 18/59 Folder : Ryd - Ryn 1925-1927
- UADR 18/60 Folder : Raftery, William C. (Virginia Military Institute, Lexington, VA) 1927-1929
- UADR 18/61 Folder : Randolph, Jennings (Davis- Elkins College, Elkins WV) 1927-1929
- UADR 18/62 Folder : Rath, J. Augustus Rev (NY) 1926-1929
- UADR 18/63 Folder : Rathel, G.L. (Kokomo, IN) 1925-1929
- UADR 18/64 Folder : Rathje, Merritt W. (Marquette Woods Improvement Assn) 1929
- UADR 18/65 Folder : Rawlings Manufacturing Company / W.P. Whitley 1920-1927
- UADR 18/66 Folder : Rawson, Charles A. (Des Moines, IA) 1927-1929
- UADR 18/67 Folder : Reach, A.J. Wright, and Ditson 1925-1929
- UADR 18/68 Folder : Reagan, Robert P. 1925-1927
- UADR 18/69 Folder : Red, Cornelius E. (Saint Louis, MO) 1926
- UADR 18/70 Folder : Redden, Earl J. (Playland Amusement Park, South Bend) 1925-1927
- UADR 18/71 Folder : Reed, Preston E. (Financial Advertisers Association) 1929
- UADR 18/72 Folder : Reed, Robert A. (Fort Wayne, IN, Journal Gazette) 1926-1927
- UADR 18/73 Folder : Reedy, Joseph J. (Notre Dame Football Player) 1924-1926
- UADR 18/74 Folder : Reese, Frank A. (Wabash College, Crawfordville, IL) 1924-1926
- UADR 18/75 Folder : Reese, Frank A. (Robinson, IL) 1926-1927
- UADR 18/76 Folder : Reese, Frank A. (Spring Hill College, AL) 1928
- UADR 18/77 Folder : Reese, Frank A. (Spring Hill College, AL) 1928-1929
- UADR 18/78 Folder : Reese, Frank A. (Spring Hill College, AL) 1929
- UADR 18/79 Folder : Reid, W.A. (Colgate Univ, Hamilton, NY) 1924-1929
- UADR 18/80 Folder : Reilly, Clarence R. (Notre Dame Football Player, etc . . .) 1924-1928
- UADR 18/81 Folder : Reilly, Joseph A. (Kansas City, MO, Athletic Club) 1925-1927
- UADR 18/82 Folder : Rempe, H.R. and Lester (Chicago, IL) 1925-1929
- UADR 18/83 Folder : Rensselaer Polytechnic Institute (Troy, NY) 1925-1929
- UADR 18/84 Folder : Reque, Sig (Luther College, Decorah, IA) 1926-1929
- UADR 18/85 Folder : Reynolds, C.W.P. (Syracuse Univ, NY, etc . . .) 1925-1929
- UADR 18/86 Folder : Reynolds, F.A. (Boston College, MA) 1926-1927
- UADR 18/87 Folder : Reynolds, P.K. (United Fruit Co. 1926-1928
- UADR 18/87 Subject : KKR, Time Magazine, Bananas, and Players' Diet 1926-1928
- UADR 18/88 Folder : Rhodes, M.L. (Columbus, OH) 1925
- UADR 18/89 Folder : Rice, Grantland (New York, NY) 1925-1928
- UADR 18/90 Folder : Rice, Grantland (New York, NY) 1929
- UADR 18/91 Folder : Rice Institute (Houston, TX) 1924-1929
- UADR 18/92 Folder : Rich, Wilmer E. and W.G. (Whittier, CA) 1929
- UADR 18/93 Folder : Rickey, Branch (Saint Louis Cardinals) 1929
- UADR 18/94 Folder : Riley, Charles C. (Indianapolis, IN) 1926-1928
- UADR 18/95 Folder : Riley, John Urban (South Bend, IN, and Boston, MA) 1920-1929
- UADR 18/96 Folder : Riordan, John W. 1926-1929
- UADR 18/97 Folder : Ripley, Robert L. (Believe It or Not) 1929
- UADR 18/98 Folder : Rissman, Jack F. (New York, NY) 1925-1926
- UADR 18/99 Folder : Rissman, Jack F. (Chicago, IL) 1927
- UADR 18/100 Folder : Rissman, Jack F. (Chicago, IL) 1928
- UADR 18/101 Folder : Rissman, Jack F. (New York, NY) 1929
- UADR 18/102 Folder : Rivenburg, R.H. (Bucknell University, Lewisburg, PA) 1929
- UADR 18/103 Folder : Roach, John W. (Appleton, WI) 1924-1929
- UADR 18/104 Folder : Roach, Robert L. (Muscatine, IA) 1924-1929
- UADR 18/105 Folder : Robb, W.L. (Wilson- Western Sporting Goods Co.) 1927/11
- UADR 18/106 Folder : Robb, W.L. (Wilson- Western Sporting Goods Co.) 1927/09-11
- UADR 18/107 Folder : Roberson, Foy Dr. (Univ of North Carolina) 1927-1929
- UADR 18/108 Folder : Robert, L.W. "Chip" (Atlanta, GA) 1924-1927
- UADR 18/109 Folder : Robert, L.W. "Chip" (Atlanta, GA) 1929
- UADR 18/110 Folder : Robertson, A.J. (Bradley Polytechnic Institute, Peoria, IL) 1927-1929
- UADR 18/111 Folder : Rochester, NY, Ad Club / Glenn C. Morrow 1926-1927
- UADR 18/112 Folder : Rochetto, Louis R. (Chicago, IL) 1926-1929
- UADR 18/113 Folder : Rock, H.E. (Marietta, OH, High School) 1927-1928
- UADR 18/114 Folder : Rockne, Florence (KKR's Sister) 1925-1926
- UADR 18/115 Folder : Rockne, Florence (KKR's Sister) 1927-1929
- UADR 18/116 Folder : Rockne, Knute G. (Chicago, IL) 1925-1929
- UADR 18/117 Folder : Rockne, Louise (KKR's Sister) 1919-1926
- UADR 18/118 Folder : Rockne, Louise (KKR's Sister) 1926-1927
- UADR 18/119 Folder : Rockne, Louise (KKR's Sister) 1927
- UADR 18/120 Folder : Rockne, Louise (KKR's Sister) 1927-1928
- UADR 18/121 Folder : Rockne, Louise (KKR's Sister) 1929
- UADR 18/122 Folder : Rockne, Mary Jeanne (KKR's daughter) 1929
- UADR 18/123 Folder : Rockne, William (KKR's Son) 1929
- UADR 18/124 Folder : Rogers, Frederick Rand (Univ of the State of NY) 1928
- UADR 18/125 Folder : Rohan, Howard J. (Cincinnati, OH) 1921-1926
- UADR 18/126 Folder : Rohan, Howard J. (Cincinnati, OH) 1927-1929
- UADR 18/127 Folder : Rohr, Abe M. (Chicago, IL) 1927-1929
- UADR 18/128 Folder : Rokne, Peter A. (KKR's Cousin) 1920-1925
- UADR 18/129 Folder : Romney, Richard E.L. "Dick" (Utah Agricultural College, Logan, UT) 1926-1927
- UADR 18/130 Folder : Roper, William W. (Princeton Univ, NJ) 1926-1928
- UADR 18/131 Folder : Roper, William W. (Princeton Univ, NJ) 1928-1929
- UADR 18/132 Folder : Rosenbloom, Leonard (Chicago, IL) 1927-1929
- UADR 18/133 Folder : Roth, Jesse H. (Kankakee, IL) 1920-1929
- UADR 18/134 Folder : Ruckelshaus, John C. (Indianapolis, IN) 1925-1929
- UADR 18/135 Folder : Ruckelshaus, Thomas F. (Notre Dame Football Player) 1924-1926
- UADR 18/136 Folder : Russell, James (Notre Dame Football Player) 1926-1929
- UADR 18/137 Folder : Russert, Francis M. (Buffalo, NY) 1927-1929
- UADR 18/138 Folder : Ruth, Babe 1926-1928
- UADR 18/139 Folder : Ryan, Al C. (Business Manager of Athletics, etc 1924-1925
- UADR 18/140 Folder : Ryan, Al C. (Chicago, IL) Alfred C. 1926-1928
- UADR 18/141 Folder : Ryan, Arthur W. (Toledo, OH, Chamber of Commerce) 1925
- UADR 18/142 Folder : Ryan, George "Buddy" (Lansing, MI) 1925-1928
Includes references to a dog mascot named Jack.
- UADR 18/143 Folder : Ryan, Jack J. (Northwestern Univ and Milwaukee, WI) 1921-1929
- UADR 18/144 Folder : Ryan, John J. (Notre Dame, Pittsburg, PA) 1925-1929
- UADR 18/145 Folder : Ryan, Paul J. "Muggs" (Johnstown, PA) 1924-1925
- UADR 18/146 Folder : Ryan, Paul J. "Muggs" (Johnstown, PA) 1925
- UADR 18/147 Folder : Ryan, Paul J. "Muggs" (Johnstown, PA) 1926-1929