Kucera was educated at St. Procopius College (now known as Benedictine University) in Lisle, Illinois. He took the religious name of Daniel when he professed religious vows June 16, 1944, at St. Procopius Abbey in the Order of Saint Benedict. On May 26, 1949, he was ordained a priest. Kucera earned a doctorate in education from The Catholic University of America in 1954. His background in education has led Vatican officials — including the Pope — to ask his advice on educational matters. He served in various administrative positions at St. Procopius College until he was named the college's president. On July 8, 1964, he was elected Abbot of St. Procopius Abbey and received his abbatial blessing on August 19, 1964. He served as abbot until June 1, 1971, when he resigned to become the college's president again.