Barnard College:
        One letter to John Eliot Brown

Benedict, Clare. "Extracts from Letters to Friends and Relations." Constance
       Fenimore Woolson. London: Ellis, 1930. Reprint. London: Ellis, 1932.

---------.  Appreciations. Leatherhead, Surrey: F. B. Benger, 1941.

Beverly Historical Society & Museum, Beverly, Massachusetts:
       Four letters to Katharine Loring

Brigham Young University:
       One letter to "Sir"

Brown University, John Hay Archives:
       Twenty-one letters to John Hay
       Twenty letters to Mr. and Mrs. Hay
           Edited by Alice Hall Petry in Books at Brown, 1982-83. 

Central Michigan University, Clark Historical Library

Colby College:
      Four letters to Rebekah Owen 
      One letter to James Osgood 
      One letter to Mr/Mrs. Gilman, one letter to Mr. Gilmore 

Columbia University, E.C. Stedman Papers:  
       Twenty letters to E. C. Stedman

Cornell University:

Duke University:  Paul Hamilton Hayne Papers:
       Fifteen letters to Paul Hamilton Hayne

Emory University:
       One letter to Joel Chandler Harris

Fiske Free Library, Claremont, New Hampshire: 
       One letter to O. F. R. Waite

Hayes Presidential Library:       

Houghton Library, Harvard University:
       Two letters to Thomas Bailey Aldrich
       Four letters to Elinor Mildred Howells
       Six letters to William Dean Howells
       Four letters to Henry James Sr. 

Huntington Library, San Marino, CA: 
       One letter to James Osgood

Johns Hopkins University: 

Knox College:
       One letter to "Dear Little Readers." 

Library of Congress: 

Massachusetts Historical Society: 

Miami University of Ohio:

New York Public Library:
       Joseph Gilder Papers
       Lee Kohns Collection: One letter to B. Philips

Ohio State University:
      One letter to Mrs. Markland

Phillips Exeter Academy: 

Pierpont Morgan Library:
       Thirty-nine letters to Dr. W. W. Baldwin

Princeton University:
       Two letters to Scribners
       One letter to D. C. Eaton
       One letter to E. C. Stedman
       One letter to Miss Mary Boot,
       One letter to Mary Mapes Dodge

Radcliffe College: 

Rollins College, Winter Park, Florida, Woolson Collection of Memorabilia:

SUNY/Buffalo, Lockwood Memorial Library: 

Stedman, Laura, and George M. Gould. Life and Letters of Edmund Clarence  
       Stedman. 2 vols. (New York: Moffat, Yard and Co., 1910).
      
Stuart House City Museum, Mackinac Island, Michigan:
       One letter to Miss Farnian
       One letter to James R. Osgood

Trinity College:

University of Florida: 

University of Michigan: 

University of Pennsylvania, Elsa Noble Collection:

University of Virginia, Grace Carter letters:
       One letter each to: Scribners, Mr. Fay, Miss
       Richards, Sir, Mrs. Nixon, McKibbon 

University of Wisconsin/Madison, Cairns Collection:

Vassar College.
       One letter to Mrs. Houts

Western Reserve Historical Society, Woolson Collection:

            Mather Family Papers: MS. 3735:  32+ letters.
            Benedict Collection. 
            Warren H. Manning Papers: "Constance Fenimore Woolson Memorial at 
                        Mackinac Island, Michigan" 

Yale University: 
       Two letters to E. C. Stedman.