Alban Jasper Conant
Alban Jasper Conant( September 24, 1821- February 3, 1915) was a painter best known for painting the first portrait of Abraham Lincoln.
Oliver R. Barrett
Oliver R. Barrett was a lawyer, author, and prolific collector of Abraham Lincoln artifacts.
Abraham Lincoln (1924 film)
The Dramatic Life of Abraham Lincoln is a 1924 American feature film directed by Phil Rosen and written by Frances Marion.
By the date of release, the film's title was shortened to Abraham Lincoln, since the previous title was regarded as cumbersome.
Benjamin P. Thomas
Benjamin Platt Thomas( February 22, 1902 – November 29, 1956) was an American historian and biographer of Abraham Lincoln.
Ira Harris
Ira Harris( May 31, 1802 December 2, 1875) was an American jurist and senator from New York.
He was also a friend of Abraham Lincoln.
Mary Lincoln Beckwith
Mary Lincoln Beckwith( August 22, 1898 – July 10, 1975) was a prominent descendant of Abraham Lincoln.
She was one of the last two descendants( great- grandchildren) of Abraham Lincoln, along with her brother Robert Todd Lincoln Beckwith.
Michael Krebs
Michael Krebs is an American actor, best known for his portrayals of Abraham Lincoln.
Phil Rosen
Philip E. Rosen (May 8, 1888 – October 22, 1951) was an American film director and cinematographer.
He directed 142 films between 1915 and 1949.
He was born in Marienburg, German Empire
(now, Malbork, Poland), grew up in Machias, Maine, and died in Hollywood, California of a heart attack.
He was one of the founders of the American Society of Cinematographers.
Rosen was married to model and actress Joyzelle Joyner.
Richard T. Jones
Richard Timothy Jones( born January 16, 1972) is an American actor.
Jones is best known for his portrayals of Laveinio in the dramatic film" The Wood"( 1999) and Mike of the dramatic films" Why Did I Get Married?"( 2007) and" Why Did I Get Married Too?"( 2010).
He is also well known for his role as Bruce Van Exel, court services officer on the CBS television series" Judging Amy" that aired from 1999 to 2005.
George A. Billings
George A. Billings (November 22, 1870 - April 15, 1934) was an American actor noted for his portrayals of Abraham Lincoln in 1920s films, commencing with the 1924 film "The Dramatic Life of Abraham Lincoln".
He was hired for this film, despite a lack of prior acting experience, due to his close likeness to Lincoln.
In 1927, he also toured the mid-western United States playing Lincoln in a two-man play with Henry Fonda.
It started out successfully, but Fonda quit due to Billings' prodigious drinking.

Question: What is the cause of death of director of film Abraham Lincoln (1924 Film)?
Answer: heart attack