Joseph, in Emmitsburg, Maryland, in 1809. A year later, she opened the first free Catholic school for girls in the United States. Many trace the modern Catholic school system in America to Seton's Emmitsburg institution. In 1975, Seton became the first American-born person to be canonized a saint. Mother Mary Lange - Born in Cuba, Elizabeth Clarisse Lange migrated to United States in the early 19th century. She eventually settled in Baltimore and opened a free school in her home where she educated black children who faced intense prejudice and were denied access to most schools. In 1828, Lange founded the Oblate Sisters of Providence, the first sustained religious order for women of African descent in the United States. She also opened what would later become St. Frances Academy - the first Catholic School for African-American children in the U.S. In 1991, the Catholic Church opened a cause of sainthood for Lange, naming her a "servant of God." Sexual abuse cases In 2016, the Archdiocese of Baltimore confirmed that settlements had been paid to past students of Archbishop Keough High School who were sexually abused by Father A. Joseph Maskell, a priest at the school from 1967 to 1975. In January 1970, a popular English and drama teacher at Archbishop Keough, Sister Cathy Cesnik, was found murdered in the outskirts of the city of Baltimore. Her murder was never solved and is the topic of a true crime documentary The Keepers that was released on Netflix on May 19, 2017. Maskell, who died in 2001, was long fingered as a lead suspect in her murder. Though never formally charged, the Archdiocese of Baltimore settled with 16 of Maskell's possible victims for a total of $472,000 by 2017. A report released by Pennsylvania Attorney General Josh Shapiro on August 14, 2018, singled out bishop and future cardinal William Keeler for transferring abusive Pennsylvania priest Father Arthur Long from the Diocese of Harrisburg to the Archdiocese of Baltimore. On August 15, 2018, one day after the Pennsylvania report was published, the Archdiocese of Baltimore announced that a pre K-8 Catholic school scheduled to be opened in 2018 and named for Keeler would no longer bear his name. Despite a denial from Long's religious order and the Archdiocese of Baltimore that Long abused children while serving the Archdiocese of Baltimore, a leaked church memo written in 1995, the year Long was removed from