This folder contains correspondence and other documents from 1921, along with undated items that were probably generated in 1921. Included is correspondence with the Marie Curie Radium Fund regarding Madame Curie's visit to the United States and a White House ceremony with President Harding. There are numerous items, including correspondence with the American Radiator Co., pertaining to the upkeep and repair of Glenmont, the Edison home in Llewellyn Park, New Jersey. A letter by Edison's personal business secretary, Richard W. Kellow, discusses the use of poison to exterminate rats infesting the citrus grove at Edison's property in Fort Myers, Florida. A series of communications, including one by Thomas Edison, relates to the discharge of Edward McMullen, an employee in the Plating Dept. of Thomas A. Edison, Inc. A letter by Caroline F. Ballentine of Port Huron, Michigan, recommends social worker and women's rights activist Bina M. West for a position on President Harding's disarmament advisory committee. Other correspondents include Emily Hammond of the Woman's Roosevelt Memorial Association and longtime Edison associate Frank A. Wardlaw.