How old would Nikolaas Tinbergen be today?

Frida Kahlo

Painter celebrated for her vivid self-portraits and works inspired by Mexican popular culture.

Photo: Guillermo Kahlo · Public domain

Katharine Hepburn

Katharine Houghton Hepburn (May 12, 1907 – June 29, 2003) was an American actress whose career as a leading lady on stage and screen spanned six decades.

Source: Wikipedia · CC BY-SA 4.0

Photo: Metro-Goldwyn-Mayer Studios ; Restored by Adam Cuerden · Public domain

Astrid Lindgren

Astrid Anna Emilia Lindgren (Swedish:; née Ericsson; 14 November 1907 – 28 January 2002) was a Swedish writer of fiction and screenplays.

Source: Wikipedia · CC BY-SA 4.0

Photo: Unknown author · Public domain

John Wayne

Marion Robert Morrison (May 26, 1907 – June 11, 1979), known professionally as John Wayne, was an American actor. Nicknamed "Duke", he became a popular icon through his starring roles in films which were produced during Hollywood's Golden Age, especially in Western and war movies.

Source: Wikipedia · CC BY-SA 4.0

Photo: Unknown photographer · Public domain

Rachel Carson

Rachel Louise Carson (May 27, 1907 – April 14, 1964) was an American marine biologist, writer, and conservationist whose sea trilogy (1941–1955) and book Silent Spring (1962) are credited with advancing marine conservation and the global environmental movement.

Source: Wikipedia · CC BY-SA 4.0

Photo: U.S. Fish and Wildlife Service · Public domain

Robert A. Heinlein

Robert Anson Heinlein ( HYNE-lyne; July 7, 1907 – May 8, 1988) was an American science fiction author, engineer, and naval officer.

Source: Wikipedia · CC BY-SA 4.0

Photo: Photographer unknown, published by Doubleday · Public domain