Contributors to the Catholic Encyclopedia

Johann Peter Kirsch (3 November 1861 – 4 February 1941) was a Luxembourgish ecclesiastical historian and biblical archaeologist.

Bonaventura Cerretti (17 June 1872 – 8 May 1933) was an Italian cardinal of the Roman Catholic Church. He served as Prefect of the Supreme Tribunal of the Apostolic Signatura from 1931 until his death, and was elevated to the cardinalate in 1925.

Georges Goyau (31 May 1869 – 25 October 1939) was a French historian and essayist specializing in religious history.

Ferdinand Vincent-de-Paul Marie Brunetière (19 July 1849 – 9 December 1906) was a French writer and critic.

Émile Bréhier (French: [bʁeje]; 12 April 1876, Bar-le-Duc – 3 February 1952, Paris) was a French philosopher. His interest was in classical philosophy, and the history of philosophy. He wrote a Histoire de la Philosophie, translated into English in seven volumes. This work inspired Freddie Copleston's own History of Philosophy (1946–1975), initially comprising nine volumes.