Question: who passed away first Perry N. Vekroff or Paul Cox ?

Context paragraphs:
Bridges Burned: Bridges Burned is a lost 1917 silent film drama directed by Perry N. Vekroff and starring Olga Petrova.  Popular Plays and Players produced while Metro Pictures distributed.

Trailed by Three: Trailed by Three is a 1920 American western film serial directed by Perry N. Vekroff.  This is now considered to be a lost film.

Men (1918 film): Men was a 1918 American silent drama film directed by Perry N. Vekroff based upon a play by Harry Sophus Sheldon.  It starred Anna Lehr, Charlotte Walker, and Robert Cain.  It is considered to be a lost film.

A Woman's Experience: A Woman's Experience is a 1919 silent film drama directed by Perry N. Vekroff and starring Sam Hardy and Mary Boland.  It was filmed in 1918 and released in early 1919.  This film is preserved by the Library of Congress.

Open information extraction: In natural language processing, open information extraction (OIE) is the task of generating a structured, machine-readable representation of the information in text, usually in the form of triples or n-ary propositions.  A proposition can be understood as truth-bearer, a textual expression of a potential fact (e.g., "Dante wrote the Divine Comedy"), represented in an amenable structure for computers [e.g., ("Dante", "wrote", "Divine Comedy")].  An OIE extraction normally consists of a relation and a set of arguments.  For instance, ("Dante", "passed away in" "Ravenna") is a proposition formed by the relation "passed away in" and the arguments "Dante" and "Ravenna".  The first argument is usually referred as the subject while the second is considered to be the object.

Perils of the Yukon: Perils of the Yukon is a 1922 American Northern silent film serial directed by Jay Marchant, J. P. McGowan and Perry N. Vekroff.  This serial is presumably lost.

The Secret Four: The Secret Four is a 1921 American action film serial directed by Albert Russell and Perry N. Vekroff.  The film is now considered lost.

Perry N. Vekroff: Perry N. Vekroff (3 June 1881 – 3 January 1937) was an American film director, screenwriter and actor of the silent era.  He directed 19 films between 1914 and 1922, including two film serials for the Universal Film Manufacturing Company and one for Pathé.  He was born in Shumen, Bulgaria and died in Hollywood, California.

The Secret of Eve: The Secret of Eve is a lost 1917 silent film drama directed by Perry N. Vekroff and starring Olga Petrova.  It was produced by Popular Plays and Players and distributed through Metro Pictures.

Paul Cox: Paulus Henrique Benedictus "Paul" Cox (16 April 194018 June 2016) was a Dutch-Australian filmmaker, who has been recognized as "Australia's most prolific film auteur".  "Cox's delicate films have been pockmarked with life's uncertainty.  Loneliness within relationships is a staple of the Cox oeuvre, too".  David Wenham states, "There is no one like Cox... He is unique, and we need him, and people like him... He is completely an auteur, because everything you see on the screen, and hear, has got Paul's fingerprints all over it."

Supporting paragraphs: Perry N. Vekroff Paul Cox
Answer: Perry N. Vekroff