This folder contains correspondence to and from Grace Miller Hitchcock, sister of Mina Miller Edison. The three selected letters cover the years 1914 and 1931. An undated letter from Edith Edison Potter mentions the Edison family's 1914 "camping expedition" into the Everglades of Florida, in which Henry and Clara Ford also participated. An undated letter to Mina, probably written early in 1931, relates to the treatment of Grace and her sister Mary Nichols at the Battle Creek Sanitarium in Miami Springs, Florida. Also included is letter of sympathy from Charles Arthur Carlisle in regard to the death of Thomas Edison.

Additional letters by Grace Miller Hitchcock and her husband Halbert Kellogg Hitchcock can be found in the Charles Edison Fund Collection. Some of the letters in the CEF Collection, scanned from the microfilm, are now in the possession of the Thomas Edison National Historical Park. These items are so indicated in the document information frame above each image.