Flora Foster was born in Boston to Anne Louise Ramsell Foster and Conrad Houteling Foster. Conrad Foster was a theater owner in Chicago and eventual mayor of Traverse City, Michigan.[1][2][3][4]
Her sister, Edna Foster, was also a child actress.[1][2] They both worked in vaudeville. Foster attended boarding school in New York near Biograph's studios while their father remained in Chicago.[8]
Foster's favorite stage actress was Maude Adams. She and her sister both enjoyed working with D.W. Griffith and Harry Carey. She had grey eyes and blonde hair.[8]
Foster died of heart failure in Chicago on September 21, 1914.[1][9]