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| R. R. Moton Elementary School (1) | Racine Public Library (1) |
| Radcliffe College (11) | Radford University (4) |
| Radio America (3) | Radio Drama Network (1) |
| Radio Free Georgia (1) | Radio Road Gang, Inc. (1) |
| Radius Institute (1) | Railroad Museum of Minot (3) |
| Rainbow Television Workshop, Inc. (3) | Rainy Mountain Kiowa Indian Baptist Church (1) |
| Ramah Navajo School Board, Inc. (1) | Ramapo College of New Jersey (6) |
| Ramsey County Historical Society (8) | Ramsey House Plantation and Historic Home (1) |
| Rancho Cucamonga Branch Library (1) | Rancho Santa Ana Botanic Garden (1) |
| Rand Corporation (1) | Randolph County Historical Society (1) |
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| Rapid City Public Library (1) | Rappahannock Community College (2) |
| Rare Book School (2) | Raritan Valley Community College (1) |
| Rattlesnake Productions, Inc. (5) | Raymond A Whitwer Tilden Public Library (1) |
| Re-Encuentro Cubano, Inc. (1) | Reading Area Community College (2) |
| Reading Public Library (1) | Real Deal Production Co. (1) |
| Reap Associates, Inc. (1) | Reconstructionist Rabbinical College (1) |
| Recording for the Blind, Inc. (2) | Red Cloud Productions, Inc. (2) |
| Reddick Library (1) | Redwood City Public Library (1) |
| Redwood Library and Athenaeum (4) | Reed College (13) |
| Reed Memorial Library (1) | Reedsburg Public Library (1) |
| Refugee Resettlement Program (1) | Regents Press of Kansas (2) |
| Reginald F. Lewis Museum of Maryland African American History and Culture (1) | Region 9 of the Evangelical Lutheran Church (1) |
| Regional Conference of Historical Agencies (5) | Regional Council of Historical Agencies (3) |
| Regis College (1) | Regis University (1) |
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| Renaissance Film Project (2) | Renaissance Society of America (13) |
| Renew Media (7) | Reno County Historical Society (2) |
| Rensselaer County Historical Society (4) | Rensselaer Polytechnic Institute (6) |
| Renville County Historical Museum (1) | Repertory Dance Theatre (1) |
| Research for Social Change (1) | Research Foundation for Jewish Immigration (3) |
| Research Foundation of SUNY (36) | Research Libraries Group, Inc. (23) |
| Resident Arts and Humanities Consortium, Inc. (1) | Restorations of Kane County (1) |
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| Rex Dobson Ruby Ellen Farm Foundation (1) | Reynolda House, Museum of American Art (1) |
| Rhode Island Black Heritage Society (8) | Rhode Island College (1) |
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| Rice University (36) | Richard Hugo House (1) |
| Richard I. Bong WWII Heritage Center (3) | Richard Nickel Committee (1) |
| Richard Stockton College of New Jersey (6) | Richards Free Library (2) |
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| Robert R. Moton Memorial Institute, Inc. (1) | Robert R. Moton Museum Inc. (1) |
| Robert S. Peabody Foundation (2) | Robert Treat Paine Historical Trust (1) |
| Robinson Museum (2) | Robinson Township Library (1) |
| Rochelle Lee Fund (2) | Rochester Area Educational TV Association (1) |
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| Rochester Historical Society (5) | Rochester Institute of Technology (19) |
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| Rokeby Museum (3) | Roland Park Country Day School (1) |
| Rolling Hills Consolidated Library (3) | Rollins College (9) |
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| Royal Oak Public Library (1) | Rubin Museum of Art (1) |
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| Rust College (4) | Rutgers University Art Gallery (1) |
| Rutgers University Press (15) | Rutgers University, Camden (6) |
| Rutgers University, New Brunswick (94) | Rutgers University, Newark (10) |
| Rutherford B. Hayes Presidential Center (5) | Rutland Free Library (3) |
| Rye Historical Society (1) |
