Penny of Top Hill Trail is a silent 1921 Western comedy-drama film based on the 1919 novel by Belle Kanaris Maniates.
 It was directed by Arthur Berthelet and stars Bessie Love.
Sherlock Holmes is a 1916 American silent film starring William Gillette as Arthur Conan Doyle's Sherlock Holmes.
 The film, which was directed by Arthur Berthelet, was produced by Essanay Studios in Chicago.
 It was adapted from the 1899 stage play of the same name, which was based on the stories, "A Scandal in Bohemia," "The Final Problem," and "A Study in Scarlet" by Arthur Conan Doyle.
How to Make an American Quilt is the debut novel of Whitney Otto.
 The novel tells the intersecting stories of several generations of women who together are part of the same quilting circle in Grasse, California.
 The novel was made into a movie of the same name in 1995 directed by Jocelyn Moorhouse and starring Winona Ryder as Finn Dodd.
The Dressmaker is a 2015 Australian revenge comedy-drama film written and directed by Jocelyn Moorhouse, based on the novel of the same name by Rosalie Ham.
 It stars Kate Winslet as a femme fatale in the titular role of the dressmaker, Myrtle "Tilly" Dunnage, who returns to a small Australian town to take care of her ailing, mentally unstable mother.
 The film explores the themes of revenge and creativity and was described by Moorhouse as "Clint Eastwood's "Unforgiven" with a sewing machine."
Jocelyn Denise Moorhouse (born 4 September 1960) is an Australian writer and film director.
 She has directed films such as "Proof", "How to Make an American Quilt" and "A Thousand Acres".
Arthur Berthelet (1879–1949) was an American film director who went from directing stage plays (several on Broadway) to directing silent movies.
How to Make an American Quilt is a 1995 American drama film based on the 1991 novel of the same name by Whitney Otto.
 Directed by Jocelyn Moorhouse, the film stars Winona Ryder, Anne Bancroft, Ellen Burstyn, Kate Nelligan and Alfre Woodard.
 The film received a nomination for the Screen Actors Guild Award for Outstanding Performance by a Cast in a Motion Picture.
Proof is a 1991 Australian comedy-drama film written and directed by Jocelyn Moorhouse, and starring Hugo Weaving, Geneviève Picot and Russell Crowe.
 The film was released in Australia on 15 August 1991.
 It was chosen as "Best Film" at the 1991 Australian Film Institute Awards, along with 5 other awards, including Moorhouse for "Best Director", Weaving for "Best Leading Actor", and Crowe for "Best Supporting Actor".
A Thousand Acres is a 1997 American drama film directed by Jocelyn Moorhouse and starring Michelle Pfeiffer, Jessica Lange, Jennifer Jason Leigh and Jason Robards.
Men Who Have Made Love to Me is a 1918 American silent biographical film starring Mary MacLane, based on her book "I, Mary MacLane" (1917), and directed by Arthur Berthelet.

Question: Were Jocelyn Moorhouse and Arthur Berthelet both writers and film directors?
Answer: no