Question: Are both Pedro Sienna and Harry L. Fraser both American film directors?

Context paragraphs:
The White Gorilla: The White Gorilla is a 1945 American film directed by Harry L. Fraser.  The film was made by re-editing the 1927 silent film "Perils of the Jungle", and adding new footage as a framing plot.  This was done without regard to differences in film quality or speed.

El Húsar de la Muerte: El Húsar de la Muerte (Spanish: "The Hussar of the Death" ) is a 1925 Chilean silent film movie.  "El Húsar de la Muerte" was directed and starred by Pedro Sienna.

Pedro Sienna: Pedro Sienna (13 May 1893—20 March 1972) was a Chilean playwright, poet, journalist, art critic and theatre and movie actor who is also remembered as one of his country's pioneering directors in the early years of silent film.

Jungle Man (film): Jungle Man is a 1941 American film directed by Harry L. Fraser and starring Buster Crabbe in his first of many films for Producers Releasing Corporation.  He is reunited with Charles B. Middleton from the Flash Gordon serials.  Cinematographer and associate producer Mervyn Freeman (1890–1965)

The Tonto Kid: The Tonto Kid is a 1935 American film directed by Harry L. Fraser.

Songs and Saddles: Songs and Saddles is a 1938 American film directed by Harry L. Fraser.

Harry L. Fraser: Harry L. Fraser (31 March 1889 – 8 April 1974) was an American film director.  He directed over 80 films between 1925 and 1951, including the 1934 John Wayne film "Randy Rides Alone" and the Frank Buck 1937 cliffhanger serial "Jungle Menace".  He had a small acting role in the John Wayne film "'Neath the Arizona Skies".  He also wrote screenplays, including "Chick Carter, Detective" (1946).

The Montana Kid: The Montana Kid is a 1931 American film directed by Harry L. Fraser.

Hair-Trigger Casey: Hair-Trigger Casey is a 1936 American film directed by Harry L. Fraser.

The Savage Girl: The Savage Girl is a 1932 American film directed by Harry L. Fraser.

Supporting paragraphs: Pedro Sienna Harry L. Fraser
Answer: no