Subseries K. Catherine Coolidge Lastavica contains materials from Catherine Coolidge Lastavica, the Coolidge family papers collection creator. It includes documents pertaining to objects from the Brick House donated to Historic New England, correspondence from various family members, materials pertaining to the Amory family portraits and the creation of The Amory Portraits: A Catalogue of Portraits of Prominent Bostonians, financial and legal documents, documents pertaining to Ravenswood and The Trustees of Reservations, organizations with whom Catherine Coolidge Lastavica was affiliated, professional papers, and research. In addition to textual documents, there are photographs, transparencies, slides, negatives, both cellulose acetate and cellulose nitrate, cartes d’viste, and compact disks in this subseries. There is also material about the controversy over the paternity of Sally Hemings' children.The subseries is arranged alphabetically with donated collections information arranged in accession number order.