In May 1892, his engagement to Adele Livingston "Daisy" Stevens (1864–1939) was announced in the society section of
The New York Times, stating that: "The engagement has been cabled from Paris of Frederick H. Allen and Miss Daisy Stevens, a daughter of Frederick H. Stevens. Mr. Allen, who is a native of Boston, has lived in New-York for some years, but has never occupied a very prominent position in society, although popular among his friends. Miss Stevens has not the gift of beauty, but has always been liked for her simplicity of manner and good spirits." She was the daughter of Frederick William Stevens and Adele Livingston (
née Sampson) Stevens. Her brother was Joseph Stevens, a
Rough Rider, and her sisters were Mabel Ledyard Stevens (1872–1959), who married Count Micislas Orlowski, a polish noble, and Frances Stevens, who married the Count de Gallifet, and later, Count Maurice des Monstiers de Mérinville. Her parents had a home on
Bellevue Avenue in Newport called "the Cedars.") divorced her father and married
Maurice de Talleyrand-Périgord (1843–1917). When the Marquis' uncle abdicated his title, Maurice became the 4th
Duc de Dino and her mother became the Duchess of Dino. In 1903, the Duke and Duchess also divorced, and the Duchess kept her title. During World War I, she joined the
American Committee for Devastated France led by
Anne Morgan, serving in France from 1917 to 1918, eventually becoming the head of the Committee's motor department, for which she received the
Croix de guerre from France. • Joan Livingston Allen (1898–1964), who married Goodhue Livingston Jr. (1897–1994), son of society architect
Goodhue Livingston Sr. (1867–1951), in 1919. ==Honours and awards==