List of Famous people who died at 73

Arthur John Cronquist was an American biologist, botanist and a specialist on Compositae. He is considered one of the most influential botanists of the 20th century, largely due to his formulation of the Cronquist system as well as being the primary co-author to the Flora of the Pacific Northwest, still the most up to date flora for three northwest U.S. States to date. Two plant genera in the aster family have been named in his honor. These are Cronquistia, a possible synonym of Carphochaete, and Cronquistianthus, which is sometimes included as a group within Eupatorium. The former was applied by R.M. King and the latter by him and Harold E. Robinson.

Robert Bobin was a French athlete. He competed in the men's triple jump at the 1948 Summer Olympics.

Lewis Raymond Stricklyn was an American film actor, stage actor, television actor, soap opera star and publicist. His acting career took off with B-movie Westerns that placed his boyish good looks playing opposite top talent of the time.

Emil Newman was an American music director and conductor who worked on more than 200 films and TV series. He was nominated for an Oscar for his musical direction on the classic Sun Valley Serenade (1941), contributing to the Newmans being the most nominated Academy Award extended family, with a collective 95 nominations in various music categories.

Anthony Spinelli was an American one-time mainstream actor & producer who later became a pornographic film director.

André Lallemand was a French astronomer and director of the Institut d'Astrophysique de Paris.