Lenartowicz worked at various refugee camps after liberation, until the countries could reassess their borders. In 1946, she was stationed at the Kafertal displaced persons camp where she served as physician and was assigned a rank in the U.S. Army. Kafertal turned into a major centre for education and training of the displaced persons; Lenartowicz helped provide basic medical aid training to guards who wanted to further their job skills. At Kafertal, Lenartowicz also met Colonel Wladyslaw Rylko and married him on June 28, 1947 in Bad Soden, Germany. In 1950, Lenartowicz-Rylko gave birth to her daughter, Barbara Maria Rylko. Soon thereafter, they left Europe for the United States. Thanks to a longtime friend’s willingness to sponsor their immigration, the family was able to settle into Detroit, Michigan. While in the United States, the couple faced many hardships such as finding work, proper housing, and financial stability. Unable to gain medical licensure, Lenartowicz-Rylko never practiced medicine as a physician again. Her husband died in 1969. She died in 2010 at the age of 100.