For 20 years Sister Martha worked with Catholic, Uniate and Eastern Orthodox children, attempting to ensure them a proper education. Owing to her efforts, a teaching school was founded in Maciejow along with a vocational school. She won the hearts of residents of Volhvoia with her energy and understanding for different religious beliefs.
In August 1939, Martha of Jesus became the prioress of the congregation in Slonim. During the war she helped everyone who knocked on the nunnery door. Jews persecuted by the Germans would especially find shelter in the nunnery. Sister Martha was supported in this by her former's teacher's daughter, Bogumila Noiszewska, or Sister Eve of Providence. Both were arrested by the Gestapo and executed on December 19, 1942. Witnesses confirmed that before her death, Sister Martha forgave her murderers.
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