Worker in Lecco at the turn of the century, she works in a spinning mill and then in a factory to help her large family live honestly. She is strong in her spirit, helped by the parish priest Don Luigi Piatti, she stands out for piety and charity among the young people of Catholic Action and is the animator of parties and games in the oratory. With prayer, work, meditation, sacrifice, he served with simplicity in his family, in the parish, in the oratory, especially among disadvantaged people, with rare modesty, an enchanting smile, a tender devotion to Our Lady of Lourdes who invoked, at his grotto , with the rosary.

Mary knows the charism of the Order founded by Sister Maria Crocifissa di Rosa, a noble from Brescia (1813-1855), canonized in 1954. Once in Brescia she consecrates herself to the Lord in the congregation of the Handmaids of Charity. Maria, after the period of formation, assuming the name of Sister Lucia. She makes her perpetual vows in 1938. A life in the monastery characterized by humble services, also tasks of trust, since she went out for shopping, to accompany the Sisters to their destination places, she served the priests who came to the Mother House for Spiritual exercises. Due to a serious illness she died in the Ronchettino hospital in '54. She rests in Brescia in the mother house of the Handmaids.

She was declared venerable on February 27, 2017.