Scott Hahn (born October 28, 1957) is a contemporary author, theologian and Catholic apologist. His works include "Rome Sweet Home" and "The Lamb's Supper: The Mass as Heaven on Earth". He currently teaches at the Franciscan University of Steubenville, a Catholic  college in the United States.

Richard John Neuhaus (born May 21, 1936) is a prominent Canadian Catholic priest and writer in the United States. He is the founder and editor of the monthly journal "First Things" and the author of several books, including "The Naked Public Square: Religion and Democracy in America" (1984), "The Catholic Moment: The Paradox of the Church in the Postmodern World" (1987), and "Catholic Matters: Confusion, Controversy, …

Rod Dreher (b. February 14, 1967), originally from St. Francisville, Louisiana, is a Dallas-based writer and editor. He is an assistant editorial page editor (and occasional columnist) for "The Dallas Morning News" and a contributor to "The American Conservative" and "National Review". Previously, he served as a columnist for "The New York Post". He also runs a blog called "Crunchy Con" at beliefnet.com.

St. Elizabeth Ann Bayley Seton was the first native-born United States citizen to be canonized.

Yusuf Estes, PhD. (born 1944), is an American convert to Islam and Chairman of "the Muslim Foundation International", a Islamic Promotional and Missionary Organization dedicated to spreading the message of al-Islam according to the Quraan, Sunnah. He was brought up in a Protestant Christian family; members of the Disciples of Christ. Estes was known then as "Skip Estes". From 1962 until 1990, he had a varied career as a music minister, preacher, …

Jaroslav Jan Pelikan was one of the world's leading scholars in the history of Christianity and medieval intellectual history. Pelikan was born in Akron, Ohio to a Slovak father and a Serbian mother. His father was a Lutheran pastor and his paternal grandfather a bishop of the Slovak Lutheran Church in America. Before he turned three, his mother had taught him to use the typewriter, as he could not yet hold a pen.

Avery Cardinal Dulles, S.J. (born August 24, 1918) is currently the Laurence J. McGinley Professor of Religion and Society at Fordham University, a position he has held since 1988. He is an internationally known author and lecturer. He was born in Auburn, New York, the son of future U.S. Secretary of State John Foster Dulles (for whom Dulles Airport is named) and Janet Pomeroy Avery Dulles. His uncle was Director of Central Intelligence Allen Welsh Dulles.

Louis Bouyer (1913 - 2004) was a French Lutheran minister who converted to Catholicism in 1939. During his religious career he was a scholar who was relied upon during the Second Vatican Council. He was known for his books on Christian spiritualism and its history. He also was a co-founder of the international review "Communio". He was chosen by the pope to be part of a team to initiate the International Theological Commission in 1969.

Dan Barker (born June 25 1949) is a prominent American atheist activist who served as a Christian preacher and musician for 17 years, but left Christianity in 1984. He received a degree in Religion from Azusa Pacific University and was ordained to the ministry by the Standard Community Church, California, in 1975. He served as associate pastor at a Friend's (Quaker) Church, an Assembly of God, and an independent Charismatic church.

Christina ("Kristina") (December 8, 1626 - April 19, 1689), later known as Maria Christina Alexandra and sometimes Countess Dohna, was Queen regnant of Sweden from 1632 to 1654. She was the only surviving legitimate child of King Gustav II Adolf (the king had already had two sons, one of whom was stillborn and the other lived only one year).

Samuel Dale Brownback (born September 12 1956) is the senior United States senator from the U.S. state of Kansas. On January 20 2007, he announced his intention to seek the Republican Party's nomination for President in the 2008 Presidential election.

Kate Capshaw (born November 3, 1953) is an American actress. She is known for her role in the film "Indiana Jones and the Temple of Doom", and as the wife of director Steven Spielberg.

Julius Lester (born January 27 1939), also known as "Julius Bernard Lester" or by his Hebrew name "Yaakov Daniel", is an award winning American author of books for children and adults, and was an occasionally controversial professor at the University of Massachusetts at Amherst. Lester is Black and Jewish. He has recorded two albums of folk music.

Sigrid Undset was a Norwegian novelist who won the Nobel Prize in Literature for 1928. Undset was born in Kalundborg, Denmark, but her family moved to Norway when she was two years old. In 1924, she converted to Catholicism. She fled Norway for the United States in 1940 because of her opposition to Nazi Germany and the German occupation, but returned after World War II ended in 1945.

Angelus Silesius, a German mystic-poet, was born in Breslau, Silesia. His family name was Johann Scheffler, but he is generally known by the pseudonym Angelus Silesius, under which he published his poems and which marks the country of his birth. His father moved from Krakow in 1618 and became a citizen of Breslau, Johann was brought up a Lutheran and educated as scientist and physician. He was at first physician to the duke of Württemberg-Oels, …

Ahmed Huber (born 1927) is a Swiss-German banker and journalist, who converted to Islam and is said to be a leading spokesman for the neo-Nazi International.

Saint Anne Line (died 27 February, 1601) was an English martyr who was executed during the reign of Elizabeth I for harbouring a priest. Her date of birth is unknown, but she was the second daughter of Willam Heigham, Esq., of Essex, a strict Calvinist, and was, together with her brother William, disinherited for converting to Catholicism. Some time before 1586, she married Roger Line, a young Catholic who had been disinherited for the same reason.

Aminah Assilmi is the director of the International Union of Muslim Women. Her organization successfully lobbied for the Eid postage stamp. She is working on making "Eid Day" a national holiday. She speaks at college campuses and Islamic conferences. Before converting to Islam, she was a Southern Baptist and a broadcast journalist. Aminah is a renowned female scholar of Islam.

Kirstie Louise Alley (born January 12, 1951) is an American actress known for her role in the TV show "Cheers", where she played Rebecca Howe from 1987-1993, winning an Emmy as the "Outstanding Lead Actress in a Comedy Series" for 1991. A year later, she won a Golden Globe for her performance in "Cheers" as well. She won an Emmy in 1994 for her role in the TV-drama "David's Mother".

Carolivia Herron (born July 22, 1947) is an American writer of children's and adult literature, and a scholar of African-American Judaica.

Charles Bradley Templeton (October 7 1915 - June 7 2001) was successively a Canadian cartoonist, evangelist, politician, newspaper editor, broadcaster and author. At the age of 17 during the Great Depression, Chuck Templeton (as he was then known) got his first job as a sports cartoonist for "The Globe and Mail". This would be the first of many careers.

Adrienne von Speyr (September 20, 1902 - September 17, 1967) was a Swiss medical doctor and Catholic mystic.

Robert Hayden (August 4 1913 - February 25 1980) was an American poet, essayist, and educator.

Mohammed Alexander Russell Webb. His father, Alexander Nelson Webb, was a leading journalist of his day and perhaps influenced his son’s later journalistic exploits. Webb received his early education at the Home School in Glendale, Massachusetts and later attended Claverack College, an advanced high school near Hudson, New York. He became editor of the "Unionville Republican", Unionville, Missouri. His prowess as a journalist was soon apparent, …

Yahweh ben Yahweh, born and legally named Hulon Mitchell Jr. (October 27, 1935 - May 7, 2007), was the leader of the religious sect Nation of Yahweh

Ruqaiyyah Waris Maqsood, a British Muslim author, served as Head of Religious Studies at William Gee High School, Hull, England. Her original name is Rosalynn Rushbrook She married poet George Morris Kendrick in 1964 and then had a son and daughter, but later divorced. In 1990 she remarried a Pakistani Waris Ali Maqsood but later divorced.

Florent Chrestien (January 26, 1541 - October 3, 1596) was a French satirist and Latin poet. Chrestien was the son of Guillaume Chrestien, an eminent French physician and writer on physiology, was born at Orleans. A pupil of Henri Estienne, the Hellenist, at an early age he was appointed tutor to Henry of Navarre, afterwards Henry IV, who made him his librarian. Brought up as a Calvinist, he became a convert to Catholicism.

James Roosevelt Bayley, D.D. (August 23, 1814 – October 3, 1877), was the first Bishop of Newark, New Jersey, and the eighth Archbishop of Baltimore.

Elisabeth Hesselblad, religious name Maria Elisabetta Hesselblad, (June 4, 1870 -April 24, 1957) was a Swedish nurse, nun, and beatified woman. She was the fifth of thirteen children born to a Lutheran family in Fåglavik, Herrljunga Municipality, Sweden. By 1886, she had to work to help them make ends meet. At first she looked for work in Sweden, but eventually sought work in the United States as a nurse.

Veit Erbermann (or Ebermann was a German theologian and controversialist. He was born of Lutheran parents, but at an early age he became a Roman Catholic, and on 30 May, 1620, entered the Society of Jesus. After completing his ecclesiastical studies he taught philosophy and Scholastic theology, first at Mainz and afterwards at Würzburg. Subsequently he was appointed rector of the pontifical seminary at Fulda, which position he held for seven years.

Reinhard Hütter or Reinhard Hutter is a formerly Lutheran, now Catholic, theologian who is currently an Associate Professor of Christian Theology at Duke Divinity School in Durham, NC. In December of 2005, Hütter was received into the Roman Catholic Communion. Other Lutheran theologians who have become Roman Catholic include Richard John Neuhaus.

Ryan Gibson Anderson (born 1978), is an American convicted of attempting to engage in espionage for al-Qaeda Anderson lived in Everett, Washington, and converted from Lutheranism to Islam circa 1998. He attended Washington State University, where he studied Middle Eastern military history; he graduated with a Bachelor of Arts degree in 2002. Anderson was a Specialist (E-4) in the U.S. 81st Armored Brigade of the United States Army National Guard, …

Umar Faruq Abd-Allah Wymann-Landgraf (born in 1948) is an American Muslim convert, born in Columbus, Nebraska to a Protestant family of the Midwest. His was christened Larry Gene Weinman and was brought up in the Congregationalist, Presbyterian, and Lutheran traditions. He is the grandson of Dr. Joseph Ephraim Weinman, Professor Emeritus, …

Benjamin Chavis Muhammad was born Benjamin Franklin Chavis, Jr. on January 22 1948 in Oxford, North Carolina. Chavis served as a youth coordinator for the Southern Christian Leadership Conference on the advance team for Dr. Martin Luther King, Jr. He worked to desegregate the public school system in Wilmington, North Carolina where he was unjustly arrested on conspiracy and arson charges.

Gustav Frenssen was a German novelist born in the village of Barlt, in Schleswig-Holstein. He wrote patriotically about his native country and promoted Heimatkunst (regionalism) in literature. In two different villages he worked as a pastor from 1890 to 1902. In his later years he abandoned Christianity because Christian morales were in conflict with his blatant racism.

Mary MacIsaac was Saskatchewan's oldest person, second oldest in Canada, and 19th in the world at her death, aged 112. She was born Mary MacNair in Nash Creek on Baie de Chaleur, New Brunswick, and she was a schoolteacher A daughter of Mr. and Mrs. Nathaniel MacNair, her father was Presbyterian and her mother, née Mary Splude, was Roman Catholic. Mary and her siblings were raised Presbyterian, butshe converted to Catholicism as a young woman.

Ole Brunell, as he was originally named, was born in Karleby in 1953. That part of Finland is Swedish-speaking. Mr. Brunell was ordained as a minister in the Lutheran Church in 1978. At that time, he believed in the teachings of the Lutheran Church. He served as a pastor in both Finland and Australia. He preached and ministered in Swedish, English, and Finnish during his career as a minister. Eventually, he ceased to believe in the teachings of the Lutheran Church, …