According to the Internet source given below, Mary Marble was an American actress who appeared in Midwestern theatres in the 1890s playing, dancing and singing.
Her career started aged 18 playing in her uncle's Billy Marble Company on the West Coast. On account of her diminutive stature she played boys, babies and frilly girls.
In 1904 she organised a star company, touring the circuits in a musical about a singing marriage broker "Nancy Brown" and also performed in a touring version of "Babes in Toyland."A leading headline act was her partnership with Sam Chip with whom she toured until he retired in 1917. Marble continued with a small troupe on the vaudeville circuit until 1923.

Websites:
	Mary Marble	Biography by David S. Shields