Jefferson Davis was always a friend to Catholics. In his youth as a boy he studied at the Saint Thomas School at the Saint Rose Dominican Priory in Washington County Kentucky. While there Davis, the only Protestant student, expressed a desire to convert. One of the priests there advised the boy to wait until he was older and then decide. Davis never converted, but his early exposure to Catholicism left him with a life long respect for the Faith.
When the aptly named anti-Catholic movement the Know-Nothings arose in the 1840s and 1850s, Davis fought against it, as did his great future adversary Abraham Lincoln.
During the Civil War, Pope Pius wrote to the archbishops of New Orleans and New York, praying that peace would be restored to America. Davis took this opportunity to write to the Pope: