Marie was born on September 13, 1906 to Henry Martin, III and Caroline (Weilnau) Rambow in Britton, Lenawee County, Michigan. On February 16, 1927, she married Claude Bernice Cowen in Britton.

After their marriage, the couple moved to Texas and  lived in LaCoste in Medina County, Texas. In 1996, Marie was listed as living at 212 Sunway Drive in San Antonio, Texas.

Marie died on August 31, 2018 in San Antonio. She is buried in Mission Burial Park in San Antonio and was 111 years, 11 months and 18 days old at the time of her death.
 

Her sister, Ruth (Rambow, Piotter) Bordt died in 2014 at the age of 104 years, 10 months and 26 days.
 

Henry (35) and Caroline (33) were living near Ridgeway in Lenawee County, Michigan with their children, Alvin (9), Marie (4) and Earl (2).
Henry (45) and Caroline (43) were living near Ridgeway in Lenawee County, Michigan with their children, Alvin (19), Marie (14), Earl (12), Ruth (10) and David (8).
 
Marie was listed as living on Wisdom Road in Bexar, Texas with her husband, Claude Cowen and daughters, Ruth C. and Louise M. Her brother, David Rambow (26) was living with them also.
Marie (43), Claude (49) and their daughter Louise (14) were living in the same place. David Rambow (37) was living with them.