Thomas à Kempis (1380–1471) was a medieval monk and priest who served as chronicler of the monastery at Mt. St. Agnes.

Robert Jeffery was ordained in 1959 and has written on matters of Church history, spirituality, mission, and ecumenism. An Honorary Doctor of Divinity of Birmingham University, he retired from his post as Canon and Sub-Dean of Christ Church in 2002. He lives in Oxford, England.

Max von Habsburg is the author of Catholic and Protestant Translations of the Imitatio Christi 1425–1650. He lives and teaches in Northamptonshire, England.