[3] In 1921 Katherine Slattery (Sr. Margaret Mary), who had previously worked for the Postal Service, opened the first U.S. Post Office at Maryknoll and became its first Postmistress.
[6] The Maryknoll Lay Missioners, often shortened to MKLM, began as a collaborative ministry between the Fathers and Brothers and the Sisters in 1974.
James Walsh, then director of the Society for the Propagation of the Faith for the Archdiocese of Boston, founded The Field Afar, a magazine to promote awareness of the Church's foreign missions.
Mary Josephine "Mollie" Rogers assisted Walsh in selecting, translating and editing the numerous mission letters that arrived for use in the magazine.
Maryknoll Brothers would then haul the mail sacks to the Ossining train station for distribution.