When referring to Charles Chaplin marrying a young girl, Archie says that "They chased him out of the country for that." Though in reality Chaplin's public image had been tarnished in the United States due to his vocal activism and political stances in the 1940's and early 1950's. His activism led some to question whether he was a communist or a communist sympathizer, which in the "Red Scare" era of McCarthyism was enough to turn political sentiment against him. Though he had lived and worked in the country for decades he was not a citizen, thus when Chaplin sailed to London, England for the premiere of his film Limelight (1952) he was informed that his re-entry permit to the United States had been revoked by the U.S. Attorney General.
Edith mentions that "They finally gave him and an Academy Award for that." Charles Chaplin did receive an honorary Oscar at the 44th Academy Awards ceremony (April 10, 1972) for "the incalculable effect he has had in making motion pictures the art form of this century". Though he had been exiled from the USA (and Hollywood) for 20 years he came to accept the award in person and received a 12 minute standing ovation, the longest in the history of the Oscar's.
The Senator to whom Edith refers would likely be Strom Thurmond (R-SC). Thurmond was nearly 25 years older than his first wife and was 44 years older than his second wife.
The Supreme Court Justice that Edith refers to is likely William O. Douglas. His second wife was 41 years younger and his third wife was 45 years younger than him.
Edith mentions Charles Chaplin marrying a young girl. Chaplin wed four times and the age gap between the couple grew in each successive marriage. Mildred Harris was 12 years younger, Lita Grey was 19 years younger, Paulette Goddard was 21 years younger and Oona Chaplin was 37 years than Chaplin.