Over Here is a 2007 drama film directed by Jon Jost and starring Ryan Harper Gray.
All the Vermeers in New York is a 1990 American film written, directed and produced by Jon Jost.
Alfred L. Werker (December 2, 1896 – July 28, 1975) was a film director whose work in movies spanned from 1917 through 1957.
 After a number of film production jobs and assistant directing, Werker co-directed his first film, "Ridin' the Wind" in 1925 alongside director Del Andrews.
 He was brought in by Fox Film Corporation executives to re-shoot and re-edit Erich von Stroheim's film "Hello, Sister!
" (1933), co-starring Boots Mallory and ZaSu Pitts.
Jon Jost (born 16 May 1943 in Chicago) is an American independent filmmaker.
Annabelle's Affairs is a 1931 American pre-Code romantic comedy film directed by Alfred L. Werker and starring Victor McLaglen, Jeanette MacDonald and Roland Young.
 The film is based on the play "Good Gracious Annabelle" by Clare Kummer.
 It is the only one of MacDonald's films to be considered lost.
 It was well received by critics, but did not perform well at the box office.
Repeat Performance is a 1947 American film noir crime film starring Louis Hayward and Joan Leslie.
 The time travel picture combines elements of a 1940s drama with a science fiction twist.
 The film was released by Eagle-Lion Films, directed by Alfred L. Werker, and produced by Aubrey Schenck.
Up the River (1938) is a prison comedy film starring Preston Foster and Arthur Treacher and featuring Bill "Bojangles" Robinson.
 The movie was directed by Alfred L. Werker and is a remake of a 1930 film with the same title directed by John Ford and starring Spencer Tracy and Humphrey Bogart in the roles subsequently played by Foster and Tony Martin.
Pirates of Monterey is a 1947 American Technicolor Western film directed by Alfred L. Werker starring Maria Montez and Rod Cameron.
 It was the last movie she made for Universal.
Last Chants for a Slow Dance is a 1977 American drama film directed by Jon Jost and starring Tom Blair.
Emmanuelle Chaulet is a French actress.
 She starred in Eric Rohmer's 1987 comedy "Boyfriends and Girlfriends" and Jon Jost's 1990 film "All the Vermeers in New York".

Question: Do we know for a fact that Alfred L. Werker directed more films than Jon Jost?
Answer: no