Articles with unsourced statements from April 2019

Caren Marsh Doll (née Morris; born April 6, 1919), also credited as Caren Marsh, is an American former stage and screen actress and dancer specializing in modern dance and tap. She is notable as Judy Garland's stand-in in The Wizard of Oz (1939) and Ziegfeld Girl (1941). She is one of the last surviving actors from the Golden Age of Hollywood.
From 1937 until 1948, Marsh appeared in motion pictures with Metro-Goldwyn-Mayer, including a small uncredited part in Gone with the Wind. She became a dance instructor in 1956.

Count Gottfried von Bismarck-Schönhausen (9 March 1901 – 14 September 1949) was a German politician and a conspirator in the 20 July plot.

Wolfgang Rosenthal (8 September 1882 – 10 June 1971) was a German oral surgeon. Until the mid-1930s, he also pursued a parallel career as a bass-baritone singer.
After the destructive bombing of the Johanniskirche in Leipzig it became necessary to identify the physical remains of Johann Sebastian Bach before they could be reburied at the Thomaskirche nearby: Rosenthal was able to combine his knowledge of anatomy with his insights (confirmed by further anatomical investigations) into the physical effect of a lifetime of organ playing on a musician's legs to provide the necessary identification.

Helene Bresslau Schweitzer (25 January 1879 – 1 June 1957) was a German medical missionary, nurse, social worker, linguist, public medicine enthusiast, editor, feminist, sociologist, and the wife/confidant of Albert Schweitzer, who co-founded the Albert Schweitzer Hospital with her. Albert, a medical missionary, did not mention her role in his efforts. According to writer Mary Kingsley, she is "one form of human being whose praise has never adequately been sung, namely, the missionary's wife."

Marco Siffredi (22 May 1979 – 8 September 2002) was a French snowboarder and mountaineer who hailed from a climbing family; his father was a mountain guide, and his older brother Pierre had died in an avalanche in their hometown of Chamonix, France. Siffredi was the first to descend Mount Everest on a snowboard, completing this feat in 2001 via the Norton Couloir. In 2002, he disappeared after making his second Everest summit, while attempting to snowboard the Hornbein Couloir; his body has never been found.

Frédéric Pierre Bourdin (born 13 June 1974) is a French serial impostor the press has nicknamed "The Chameleon". He began his impersonations as a child and claims to have assumed at least 500 false identities; three being teenage missing people.

Jacqueline Chadwick (née Pirie, born 10 October 1975) is a Scottish actress. She is best known for her roles in the British soap operas Emmerdale (1994–1996) and Coronation Street (1998–2001), playing Tina Dingle and Linda Sykes.