Frederic W. Lincoln, Jr.

Frederic Walker Lincoln IV (15 October 1898 – 7 April 1968) was chairman of the board of trustees of the New York Medical College and the Flower and Fifth Avenue Hospital who married into the Rockefeller family. His paternal grandparents were Emily Caroline Lincoln and Frederic W. Lincoln Jr., the former mayor of Boston, Massachusetts, during the Civil War. Together, his parents had five children, of which he was the only boy: Florence Lincoln (1897–1998), who married William A. Rockefeller (1896–1973) in 1918. After their divorce, she married George Sloan (died 1955), chairman of the board of the Metropolitan Opera Association. After his death, she married H. Bartow Farr (died 1972) in 1959. He was a partner in the law firm Willkie Farr & Gallagher. Frederic Walker Lincoln IV (1898–1968). Mary Knight Lincoln (1898–1974), who married W. Stapley Wonham (1898–1973) in 1923. Philena Hope Lincoln (1901–1993), who married Reginald G. Coombe (1895–1976) in 1922. Emily Caroline Lincoln (1906–1991), who married Sidney Lanier (1902–1986) in 1927, the grandson of poet Sidney Lanier (1842–1881). He was educated at Pomfret School and then Princeton University, where he graduated in 1921.

Military service and career He joined his father's export-import firm H. W. Peabody & Co., of which he became a partner, until World War II began. He enlisted as a sergeant in the aviation section of the Army Signal Corps and fought in World War I. He joined his father's export-import firm H. W. Peabody & Co., of which he became a partner, until World War II began and he joined the Naval Air Reserve, retiring with the rank of Commander.