Question: Which nationality do Dell Henderson and Peter Segal share?

Context paragraphs:
Please Help Emily: Please Help Emily is 1917 American silent comedy-drama film starring Ann Murdock and directed by Dell Henderson.  It is based on the 1916 Broadway play "Please Help Emily" that starred Ann Murdock.  Charles Frohman's company, of whom Murdock was employed on the stage, produced the film and released it through Mutual Film.  It is now a lost film.

A Dash Through the Clouds: A Dash Through the Clouds is a 1912 short American silent comedy film directed by Mack Sennett, written by Dell Henderson and starring Mabel Normand.  It has the distinction of being somewhat of an aviation film as Sennett employed the services of real life aviation pioneer, Philip Parmelee, a pilot for the Wright Brothers.  The film provided a means through which Parmelee is preserved, as he died in a crash not long after the making.

Gambling Wives: Gambling Wives is a lost 1924 American silent melodrama.  Directed by Dell Henderson and produced by actor-producer Ben F. Wilson, it was released through Arrow Films.  The film stars Marjorie Daw.

Dynamite Allen: Dynamite Allen is a lost 1921 American silent adventure film produced and distributed by the Fox Film Corporation.  It was directed by Dell Henderson and stars athletic George Walsh.

Wife and Auto Trouble: Wife and Auto Trouble is a 1916 American film directed by Dell Henderson and Mack Sennett.  It was made by the "Tri-Stone Film Company", an evolution of "Keystone Triangle" which in turn evolved from the famous Keystone Film Company.

Dell Henderson: George Delbert "Dell" Henderson (July 5, 1877 — December 2, 1956) was a Canadian-American actor, director, and writer.  He began his long and prolific film career in the early days of silent film.

The Beautiful Adventure: The Beautiful Adventure is a 1917 American silent drama film starring Ann Murdock, a stage star.  The film is based on a Broadway stage play "The Beautiful Adventure" that had starred Murdock on Broadway.  The film was directed by Dell Henderson and released through the Mutual Film company.  It is a lost film.

Sure Fire Flint: Sure Fire Flint is a lost 1922 American silent comedy film directed by Dell Henderson and starring Johnny Hines.

The Kiss (1916 film): The Kiss is a surviving 1916 American comedy silent film directed by Dell Henderson and written by Harvey F. Thew.  The film stars Owen Moore, Marguerite Courtot, Kate Lester, Virginia Hammond, Adolphe Menjou and Thomas O'Keefe.  The film was released on October 19, 1916, by Paramount Pictures.

Peter Segal: Peter Segal (born 1962) is an American film director, producer, screenwriter and actor.  Segal has directed the comedy films "Tommy Boy" (1995), "My Fellow Americans" (1996), "" (2000), "Anger Management" (2003), "50 First Dates" (2004), "The Longest Yard" (2005), "Get Smart" (2008), " Grudge Match" (2013).

Supporting paragraphs: Peter Segal Dell Henderson
Answer: American