This folder contains correspondence and other documents by and about Edison's family. Several items are written by Edison or bear his marginalia. Among the documents for 1912 is correspondence between Edison and his wife, Mina Miller Edison, concerning the final illness and death of her mother. There are also letters pertaining to the engagement of Edison's daughter Madeleine and to the financial, business, and other interests of his sons Thomas Jr., William, and Charles. Other documents relate to the property at 10 Fifth Avenue in New York City (former headquarters of the National Phonograph Co.) owned by Mina Edison.

Approximately 80 percent of the documents have been selected. The unselected material consists primarily of unsolicited correspondence.