Question: Henry King and W. Lee Wilder, share which nationality?

Context paragraphs:
Killers from Space: Killers from Space (a.k.a.  The Man Who Saved the Earth) is a 1954 independently made American black-and-white science fiction film, produced and directed by W. Lee Wilder (brother of Billy Wilder) that stars Peter Graves, Barbara Bestar, Frank Gerstle, James Seay, and Steve Pendleton.  The film originated from an original, commissioned screenplay by his son Myles Wilder and their regular collaborator William Raynor.

Yankee Fakir: Yankee Fakir is a 1947 American mystery film directed by W. Lee Wilder and written by Richard S. Conway.  The film stars Douglas Fowley, Joan Woodbury, Clem Bevans, Ransom M. Sherman, Frank Reicher and Marc Lawrence.  The film was released on April 1, 1947, by Republic Pictures.

The Vicious Circle (1948 film): The Vicious Circle is a 1948 American drama film directed by W. Lee Wilder and based on the play "The Burning Bush" by Heinz Herald and Geza Herczeg.

Phantom from Space: Phantom from Space is a 1953 independently made American black-and-white science fiction film produced and directed by W. Lee Wilder that stars Ted Cooper, Noreen Nash, Dick Sands, and Burt Wenland.  The original screenplay was written by William Raynor and Myles Wilder.  Working with most of the same crew, this was one of several early 1950s films made by Wilder and son Myles on a financing-for-distribution basis with United Artists and, on occasion, RKO Radio Pictures.

The Man Without a Body: The Man Without a Body (also known as Curse of Nostradamus) is a low budget 1957 British horror film, produced by Guido Coen and directed by Charles Saunders and W. Lee Wilder.  It stars Robert Hutton, George Coulouris, Julia Arnall and Nadja Regin.  The screenplay concerns a wealthy American man with a brain tumour who plans to replace his brain with that of Nostradamus.

Once a Thief (1950 film): Once a Thief is a 1950 American crime film noir directed by W. Lee Wilder starring Cesar Romero, June Havoc, Marie McDonald and Lon Chaney Jr..

Henry King (director): Henry King (January 24, 1886June 29, 1982) was an American film director.

The Snow Creature: The Snow Creature is a 1954 horror film monster movie produced and directed by W. Lee Wilder, written by Myles Wilder, and starring Paul Langton and Leslie Denison.

The Big Bluff: The Big Bluff is a 1955 film noir directed by W. Lee Wilder and starring John Bromfield, Martha Vickers and Robert Hutton.

W. Lee Wilder: William Lee Wilder (August 22, 1904 in Sucha, Galicia, Austria-Hungary – February 14, 1982 in Los Angeles, California) was an Austrian-born American screenwriter, film producer and director.  He was the brother of the film director Billy Wilder.

Supporting paragraphs: Henry King (director) W. Lee Wilder
Answer: American