Héctor Barrantes
Héctor Barrantes Sansoni( 1939–1990) was an Argentine polo player.
He was the stepfather of Sarah, Duchess of York.
Lolo Soetoro
Lolo Soetoro
( EYD: Lolo Sutoro;; 2 January 1935 – 2 March 1987), also known as Lolo Soetoro Mangunharjo or Mangundikardjo, of Indonesia was the stepfather of Barack Obama, the 44th President of the United States.
Caroline Kennedy
Caroline Bouvier Kennedy (born November 27, 1957) is an American author, attorney, and diplomat who served as the United States Ambassador to Japan from 2013 to 2017.
She is a prominent member of the Kennedy family and the only surviving child of President John F. Kennedy and First Lady Jacqueline Bouvier Kennedy.
Kennedy was five days shy of her sixth birthday when her father was assassinated on November 22, 1963.
The following year, Caroline, her mother, and brother John F. Kennedy Jr. settled on the Upper East Side of Manhattan, where she attended school.
Kennedy graduated from Radcliffe College and worked at Manhattan's Metropolitan Museum of Art, where she met her future husband, exhibit designer Edwin Schlossberg.
She went on to receive a J.D. degree from Columbia Law School.
Most of Kennedy's professional life has spanned law and politics, as well as education reform and charitable work.
She has also acted as a spokesperson for her family's legacy and co-authored two books with Ellen Aldermanon on civil liberties.
Early in the primary race for the 2008 presidential election, Kennedy and her uncle Ted endorsed Democratic candidate Barack Obama; she later stumped for him in Florida, Indiana, and Ohio, served as co-chair of his Vice Presidential Search Committee, and addressed the 2008 Democratic National Convention in Denver.
After Obama selected United States Senator Hillary Clinton to serve as Secretary of State, Kennedy expressed interest in being appointed to Clinton's vacant Senate seat from New York, but she later withdrew from consideration, citing "personal reasons.
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Congresswoman Kirsten Gillibrand ultimately replaced Clinton as the junior New York Senator.
In 2013, President Obama appointed Kennedy as the United States Ambassador to Japan.
Jack Schlossberg
John Bouvier Kennedy "Jack" Schlossberg (born January 19, 1993) is the youngest child, and only son, of former U.S. Ambassador to Japan Caroline Kennedy, and is the only grandson of John F. Kennedy, the 35th President of the United States.
He graduated from Yale University in 2015 and entered Harvard Law School in the fall of 2017.
Albert E. Austin
Albert Elmer Austin( November 15, 1877 – January 26, 1942) was a Republican member of the United States House of Representatives from 1939 to 1941 and member of the Connecticut House of Representatives from 1917 to 1919 and from 1921 to 1923.
He was the stepfather of Clare Boothe Luce.
Alexander von Hanstein, Count of Pölzig and Beiersdorf
Maximilian Elisäus Alexander von Hanstein, Count of Pölzig and Beiersdorf( 9 June 1804, Burghaig, Kulmbach – 18 April 1884, Schmölln) was a Thuringian count.
He was the stepfather of Prince Albert and grandfather of Hans Poelzig.
Jerrold Wexler
Jerrold Wexler( June 27, 1924 – November 10, 1992) was a noted American businessman and film producer.
He was the brother of cinematographer Haskell Wexler and the stepfather of actress Daryl Hannah.
Albert Visetti
Albert Anthony Visetti( 13 May 1846–10 July 1928) was a Dalmatian musician who moved to London where he was Professor of Singing at the Royal College of Music, becoming a Fellow in 1921.
He was the stepfather of the novelist Radclyffe Hall.
Morris Harvey
Morris Harvey( 1877– 1944) was a British actor and writer.
A renowned character actor, he also wrote for the stage, including material for Broadway revues, in which he also appeared.
He was the stepfather of film director Anthony Harvey.
Gerald Rudolff Ford
Gerald Rudolff Ford( December 9, 1890 – January 26, 1962) was an American businessman, creator of Ford Industries, and Republican politician who was the stepfather of U.S. President Gerald Ford and for whom Ford legally changed his name.

Question: Who is Jack Schlossberg's father?
Answer: Edwin Schlossberg