Francis Bernard Cassilly

Francis Bernard Cassilly (1860–1938) was an American Catholic author and Jesuit priest whose books focused on religious instruction. Reliable library records connect him with works such as Religion, Doctrine and Practice, written for use in Catholic high schools.

What stands out about his writing is its straightforward purpose: he seems to have written for the classroom, aiming to explain Catholic belief and practice in a usable, organized way rather than in an academic style. That practical approach helped place his books in the world of early 20th-century Catholic education.

Today, Cassilly is remembered mainly through library, catalog, and public-domain records that preserve his work for modern readers. While detailed biographical information appears limited in the sources available here, his surviving books show a writer dedicated to teaching faith clearly and directly.