Dugès
Several people share the surname Dugès:
Mandroid (film)
Mandroid is a 1993 film directed by Jack Ersgard starring Robert Symonds and Curt Lowens.
Curt Eisner
Curt Eisner( April 28, 1890 in Zabrze – December 30, 1981 in The Hague) was a German entomologist who specialised in snow butterflies or Parnassinae.
His collections of Parnassinae are in Naturalis, in Leiden, and his Ornithoptera and Morphidae are in the Museum für Naturkunde in Berlin.
Henry & Verlin
Henry& Verlin is a 1994 Canadian film directed by Gary Ledbetter and starring Gary Farmer, Keegan MacIntosh, and Margot Kidder.
Lacordaire
Several people share the surname Lacordaire:
Felix Bryk
Felix Bryk( 21 January 1882, Vienna – 13 January 1957, Stockholm) was a Swedish anthropologist, entomologist and writer.
In entomological circles, Bryk is best known as a lepidopterist; in anthropological history, for his studies in East Africa.
He wrote on Carl Linnaeus and was a close friend of Curt Eisner, who worked with him on the Parnassinae.
David Ji
David Longfen Ji is an American businessman who co-founded Apex Digital, an electronics manufacturer.
In 2004, he was arrested in China following a dispute with Sichuan Changhong Electric, a supplier owned by the city of Mianyang and the province of Sichuan.
Changhong accused him of defrauding them through bad checks.
Ji was taken, according to an account by his lawyer, to the senior management and told, "I decide whether you live or die."
He has been held in China without charges.
Ji's case highlighted an "implicit racism" in dealings with American businessmen.
As a U.S. citizen he was not granted the same treatment by authorities as non-ethnically Chinese businessmen sharing the same nationality.
Joe Ledbetter
Joe Ledbetter( born 1977) is an American artist and art toy designer from Los Angeles( also known as JLed).
He is considered part of the Pop Surrealism, Lowbrow Art Movement and Art and Designer Toys movement.
Felix Bryk
Felix Bryk( 21 January 1882, Vienna – 13 January 1957, Stockholm) was a Swedish anthropologist, entomologist and writer.
In entomological circles, Bryk is best known as a lepidopterist; in anthropological history, for his studies in East Africa.
He wrote on Carl Linnaeus and was a close friend of Curt Eisner, who worked with him on the Parnassinae.
Charles William Ledbetter
Charles William Ledbetter( April 5, 1922 – July 23, 2003) was one of the Tuskegee Airmen, retiring from the United States Air Force as a master sergeant after 30 years of active service.
During his tenure, he participated in World War II, the Korean War( where he flew night missions in B- 26 bombers as an engineer and gunner as part of the 3rd Bomb Wing), and in Vietnam.
In 2006, Ledbetter and the Tuskegee Airmen were honored with a Congressional Gold Medal.
He is interred at Riverside National Cemetery in Riverside, California.

Question: Did Joe Ledbetter and Curt Eisner share the same nationality?
Answer: no