• Vatican News. “Saint Titus Brandsma.” Vatican News, vaticannews.va.
• Franciscan Media. “Saint of the Day: Saint Titus Brandsma.” Franciscan Media, franciscanmedia.org.
• Carmelite Order. “Saint Titus Brandsma.” Order of Carmelites, ocarm.org.
• Catholic News Agency. “The Story Behind an Anti-Nazi Priest and a Florida Miracle.” Catholic News Agency, catholicnewsagency.com.
• The Holy See. “Titus Brandsma: Biography.” Vatican website, vatican.va.

Slides are written from The Acutis Project research packet for St. Titus Brandsma, which draws on the sources above. Photo credits appear on each picture.