Rosie Gries was born on 2 May 1896 in Eureka, South Dakota, USA. She was married to Gustav Gries. She died on 29 April 1997 in Bismarck, North Dakota, USA.
A teacher at rural schools in North Dakota and South Dakota, she became an Avon representative in Goodrich, North Dakota in February 1938 and stayed with the company for 58 years, retiring at age 100.