Question: Who directed the 1935 film "The Informer" starring Una O'Connor?

Context paragraphs:
The Secret Witness: The Secret Witness is a 1931 American pre-Code drama film, directed by Thornton Freeland and starring Una Merkel, William Collier Jr. and Zasu Pitts.  It is an adaptation of the novel "Murder in the Gilded Cage" by Sam Spewack.  The screenplay concerns a man who is found murdered in his luxury apartment.  His neighbors believe that the wrong man has been arrested and set out to solve the crime.

The Informer (1935 film): The Informer is a 1935 dramatic film, released by RKO.  The plot concerns the underside of the Irish War of Independence, set in 1920.  It stars Victor McLaglen, Heather Angel, Preston Foster, Margot Grahame, Wallace Ford, Una O'Connor and J. M. Kerrigan.  The screenplay was written by Dudley Nichols from the novel "The Informer" by Liam O'Flaherty.  It was directed by John Ford.  The novel had previously been adapted for a British film "The Informer" (1929).

Bedtime with Rosie: Bedtime with Rosie is a 1975 British comedy-drama film directed by Wolf Rilla and starring Una Stubbs, Ivor Burgoyne and Diana Dors.  A pregnant single woman on her way to the Netherlands stays with her Aunt, while there she begins to strike up a relationship with her aunt's lodger, a reclusive bachelor.

It's Easy to Remember (And So Hard to Forget): "It's Easy to Remember (And So Hard to Forget)" is a popular song written by Richard Rodgers with lyrics by Lorenz Hart, published in 1935, written for the 1935 film Mississippi starring Bing Crosby and W.C. Fields.  Crosby introduced the song in the film and his recording for Decca Records made on February 21, 1935 with Georgie Stoll and his Orchestra topped the charts of the day.  Crosby recorded the song again in 1954 for his album "".

Una O'Connor (actress): Una O'Connor (23 October 1880 – 4 February 1959) was an Irish-American actress who worked extensively in theatre before becoming a character actress in film and in television.  She often portrayed comical wives, housekeepers and servants.

Thunder in the Night: Thunder in the Night is a 1935 American crime film directed by George Archainbaud and written by Frances Hyland and Eugene Solow.  The film stars Edmund Lowe, Karen Morley, Paul Cavanagh, Una O'Connor, Gene Lockhart and John Qualen.  The film was released on September 20, 1935, by 20th Century Fox and Fox Film Corporation.

Coast of Skeletons: Coast of Skeletons is a 1965 British-South African adventure film, directed by Robert Lynn and starring Richard Todd and Dale Robertson.  It is a sequel to the 1963 film "Death Drums Along the River", and just as that film, it uses the characters from Edgar Wallace's 1911 novel "Sanders of the River" and Zoltán Korda's 1935 film based on the novel, but placed in a totally different story.

Uptight (film): Uptight (also known as "Up Tight!")  is a 1968 American drama film directed by Jules Dassin.  It was intended as an updated version of John Ford's 1935 film "The Informer", based on the book of the same name by Liam O'Flaherty, but the setting was transposed from Dublin, Ireland to Cleveland, Ohio, United States.  The soundtrack was performed by Booker T. & the MG's.  The film opens with documentary footage of the funeral procession of Martin Luther King, Jr., which is used as a backdrop for the film's fictional narrative.

The Informer (1929 film): The Informer is a 1929 British Part-talkie drama film directed by Arthur Robison and starring Lya De Putti, Lars Hanson, Warwick Ward and Carl Harbord.  The picture was based on the novel "The Informer" by Liam O'Flaherty.  In the film, a man betrays his best friend, a member of a terrorist organisation, to the authorities and is then pursued by the other members of the organisation.  The later, better known, remake "The Informer" (1935) was directed by John Ford.

Marriage Strike (1953 film): Marriage Strike (German: Ehestreik) is a 1953 West German comedy film directed by  Joe Stöckel and starring Erich Auer, Lore Frisch and Wastl Witt.  It is a remake of the 1935 film of the same title directed by Georg Jacoby.

Supporting paragraphs: The Informer (1935 film) Una O'Connor (actress)
Answer: John Ford