Hueber was born to the Brixen tower watchman, Nikolaus Hueber, and his wife Anna Tapp in 1653. Nikolaus died when she was three months old, leaving Anna to bring three children up through her work as a seamstress and by caring for the sick. Anna taught Maria reading, arithmetic, and sewing. Hueber worked in several residences in Brixen from childhood to supplement her mother's income. She moved to
Bolzano,
Innsbruck, and then
Salzburg in the 1670s, to work in several residences of lay and clergy alike, before her mother's ill health forced her to return home. In the course of her service, she struck acquaintances with many of the religious people she worked for, particularly with the
Order of the Servants of Mary in Innsbruck. She corresponded often with several of them. ==Religious community==