Question: Which prominent African-American poet, novelist, children's writer, and playwright was a famous subject of James Van Der Zee's work?

Context paragraphs:
Karen Van der Zee: Windela Kilmer (born 26 May 1947 in the Netherlands) is a popular globetrotting writer of over 33 romance novels since 1979 as Karen Van der Zee.  She also signed two novels as Mona Van Wieren and she received a RITA for "Rhapsody in Bloom".

Countee Cullen: Countee Cullen (May 30, 1903 – January 9, 1946), born Countee LeRoy Porter, was a prominent African-American poet, novelist, children's writer, and playwright during the Harlem Renaissance.

C. Van Der Zee House: C. Van Der Zee House is a historic home located at Coeymans Hollow in Albany County, New York.  It was built about 1850 and is a rectangular, two story heavy timber frame dwelling on a random coursed rubblestone foundation.  It has a one story gable roofed wing.  It has a Greek Revival style recessed entry door.  Also on the property are a barn (c. 1850), fruit barn (c. 1870), barn foundation (c. 1850), shed (c. 1870), and a chicken coop (c. 1870).

1885 speed skating race at Frognerkilen: The speed skating race at Frognerkilen in 1885 was a duel between Norwegian skater Axel Paulsen and Dutch skater Renke van der Zee.  The race took place on the fjord ice on the bay of Frognerkilen, Kristiania, on 26 February 1885.  Paulsen had been named "amateur champion of the world" following a series of victories in the United States in 1883 and 1884, and he was challenged by Dutch skater van der Zee.  The competition was met with huge interest from the local population.  A crowd of between 20,000 and 30,000 spectators witnessed the duel.  The newspaper "Morgenbladet" published a special edition on the event.  The duel was fought over a length of 3 English miles (4,827 meter).  Paulsen won the race, finishing about one minute ahead of van der Zee.  The prize money was 1,800 kr to the winner.

Madame E. Toussaint Welcome: Madame E. Toussaint Welcome, born Jennie Louise Van Der Zee (January 10, 1885 - 1956) was an African-American visual artist associated with the Harlem Renaissances. Van Der Zee who referred to herself as The Foremost Female artist of the Race, is best recognized as being among the first few African-American Women Filmmaker from the silent film industry.  She and her Husband Ernest Toussaint Welcome were also known as the husband-and-wife team of their time.  Working closely together, they establish their own art school, photographic studio and film organization, from those they produced films and paintings that recognized the African-American soldiers of World War l.  The Film; a twelve part documentary was titled; Doing the Bit in the.

Moe Brooker: Moe Brooker (born 1940) is American artist.  Working in painting and fabrics, Brooker employs bright colors such as "saturated pinks, mellow yellows and lime greens (that) are feasts for the eyes," as well as stripes and checked patterns.  He is nationally known and has received a number of awards and honors, including the James Van Der Zee lifetime achievement award.

Hans van der Zee: Hans van der Zee (born 15 January 1956 in Amsterdam) is a Dutch soccer manager and scout.

James Van Der Zee: James Van DerZee (June 29, 1886 - May 15, 1983) was an African-American photographer best known for his portraits of black New Yorkers.  He was a leading figure in the Harlem Renaissance.  Aside from the artistic merits of his work, VanDerZee produced the most comprehensive documentation of the period.  Among his most famous subjects during this time were Marcus Garvey, Bill "Bojangles" Robinson and Countee Cullen.

Dian Alberts: Dian Carina Felicia Alberts (formerly van Houten, van Groeningen and van der Zee) was a character from the Dutch television soap series "Goede tijden, slechte tijden" (English: Good Times, Bad Times).  She was played by three actresses: Lotte Van Dam (October 17, 1991 - September 15, 1993, stand-in; May - August 1996), Chris Jolles (December 29, 1994 - January 5, 1999) and Rixt Leddy (September 6, 2005 - March 3, 2008).  Each actress portrayed a different side of Dian's personality; Van Dam was the good girl, Jolles the bad girl while Leddy balanced these characters.

What Would Diplo Do?: What Would Diplo Do?  is an American comedy television series created by Brandon Dermer and James Van Der Beek.  The series stars James Van Der Beek, Dillon Francis, Dora Madison Burge, Jamar Malachi Neighbors, Bobby Lee and H. Michael Croner.  The series premiered on August 3, 2017, on Viceland.

Supporting paragraphs: James Van Der Zee Countee Cullen
Answer: Countee Cullen