The Anna Cora Ritchie collection includes incoming correspondence regarding the Mount Vernon Ladies' Association, theatre life, and other matters. Twenty letters are addressed to Anna Cora Ritchie, and two to William Foushee Ritchie.
Personal letters to Anna Cora include correspondence from writers, artists, and others involved in the theatrical world. James O. Sargent, younger brother of Epes Sargent, wrote to her regarding a search for a Mr. Johnson. She received two copies of a letter from J. Guido Methua, a German artist and husband of the actress Marie Scheller-Methua, reporting that he had begun to paint since she left the theatre. Other correspondents included Katharine Sedgwick, an American novelist, Mary Virginia Hawes Terhune (pen name Marion Harland), another writer, and Caroline M. Richings, an opera singer. The letters cover current affairs, her writings, and other personal topics.
Several of the letters discuss the activities of the Mount Vernon Ladies' Association (MVLA), particularly regarding various fundraising efforts on behalf of the organization. Four of the letters are from fellow members of the MVLA, Louisa Ingersoll Greenough, Susan Pellet, Judith Rives, and Mattie L. Hedrick. A letter from E.S. (possibly Epes Sargent, Anna Cora's literary advisor) mentioned that he had visited Mt. Vernon twice and was very pleased with the MVLA efforts. Andrew H. H. Dawson, who spoke on behalf of the MVLA, William H. Bruce, and C. F. Bartholomew also wrote to Anna Cora regarding the MVLA.
William Foushee Ritchie received two letters, one from James Lyons, a Richmond lawyer, and another from Robert H. Gray regarding an address written for the MVLA and a lengthy discussion of party politics.