Question: Who is older, Joshua L. Pomer or Valie Export?

Context paragraphs:
Periodic Bedrock Ridges: Periodic Bedrock Ridges (PBRs) are features of the surface geomorphology of Mars and formerly unknown on Earth, first described in a paper in the Journal of Geological Research - Planets, in March 2012, by Professor David R. Montgomery, Joshua L. Bandfield, and Scott K. Becker of the University of Washington.

Joshua L. Bagnall: Joshua L Bagnall was a Tyneside composer of the early and mid-19th century.

Valie Export: Valie Export (often written as 'VALIE EXPORT') (born May 17, 1940 in Linz as Waltraud Lehner, later Waltraud Höllinger) is an Austrian artist.  Her artistic work includes video installations, body performances, expanded cinema, computer animations, photography, sculptures and publications covering contemporary arts.

Joshua Wheeler: Joshua L. Wheeler (22 November 1975 – 22 October 2015) was a United States Army Special Forces Operational Detachment-Delta (aka Delta Force) Master Sergeant who was killed in Iraq during Operation Inherent Resolve.  He was the first American service member killed in action as a result of enemy fire while fighting ISIS militants and at the time of his death was the first American to be killed in action in Iraq since November 2011.  Wheeler was a highly decorated Delta Force soldier having earned 11 Bronze Star Medals including four with Valor Devices.  He was posthumously awarded the Purple Heart.

Renate Bertlmann: Renate Bertlmann (28 February 1943 in Vienna) is an Austrian feminist avant-garde artist, living and working in Vienna.  She is a contemporary of Birgit Jürgenssen and VALIE EXPORT, and her work focuses on the relationship between masculine and feminine forms.

Thomas Chamberlain (soldier): Thomas Davee Chamberlain (April 29, 1841 – August 12, 1896) was the Lieutenant Colonel of the 20th Maine Volunteer Infantry Regiment during the American Civil War, the brother of Union general Joshua L. Chamberlain, the Colonel of the 20th Maine Infantry.

Brevet (military): In many of the world's military establishments, a brevet ( or ) was a warrant giving a commissioned officer a higher rank title as a reward for gallantry or meritorious conduct, but without conferring the authority, precedence, or pay of real rank.  An officer so promoted was referred to as being brevetted (for example, ""he was brevetted major general"").  The promotion would be noted in the officer's title (e.g. ""Bvt.  Maj. Gen. Joshua L. Chamberlain"" or ""Bvt.  Col. Arthur MacArthur"").

The Practice of Love: The Practice of Love (German: "Die Praxis der Liebe" ) is a 1985 Austrian drama film written by and directed by Valie Export.  It was entered into the 35th Berlin International Film Festival.

Betty Tompkins: Betty Tompkins (born 1945) is an American artist.  Tompkins is a painter whose works revolve, almost exclusively, around photorealistic, close-up imagery of both heterosexual and homosexual intimate acts.  She creates large-scale, monochromatic canvases and works on paper of singular or multiple figures engaged in sexual acts, executed with successive layers of spray painting over pre-drawings formed by text.  Alongside artists such as Carolee Schneemann, Yoko Ono, Valie Export, Joan Semmel, Lynda Benglis and Judy Chicago, Tompkins has been re-assessed as a pioneer of Feminist art.  Tompkins is listed in The Brooklyn Museum's Elizabeth A. Sackler Center for Feminist Art's Feminist Art Base.  Her first painting, completed in 1969, is held in the permanent collection of the Centre Georges Pompidou in Paris, France.

Joshua L. Pomer: Joshua Pomer (born April 8, 1980) is an American film director, screenwriter, film producer and executive producer.

Supporting paragraphs: Joshua L. Pomer Valie Export
Answer: Valie Export