After World War II erupted, Geraldine worked for the war effort as a telephone operator. She was visiting some elderly relatives in Lemmington Spa when she met the artist Alfons Mucha´s son, Jiri, who was in the Royal Air Force (RAF), at a party. He later became a war correspondent for the BBC. After a whirlwind romance, they married and lived in a flat near Marble Arch in London. Jiri covered the war as a war correspondent while Geraldine stayed in London where she became an honorary Czech because of her associations with Czech émigrés. She went to charity events in Czech costume, once sitting near the late Queen Mother. Jiri was involved with the Czech Government in Exile which supported freeing the Czech Lands from Nazi rule.