William Thomas Walsh
William Thomas Walsh (September 11, 1891 - January 22, 1949), born in Waterbury, Connecticut, was a prominent historian, educator and author; he was also an accomplished violinist. His educational background included a B.A. from Yale University (1913) and an honorary Litt.D. from Fordham University. In 1914, he married Helen Gerard Sherwood, and they had six children.
Walsh's work is written from an avowedly Catholic point of view. In some cases he has been accused of crossing the line between apology (for example, for the Inquisition or Isabella of Spain) and antisemitic prejudice.
The blood libel controversy in the Dublin Review
Cecil Roth accused Walsh of resurrecting the blood libel in his book Isabella of Spain. For instance, according to Roth, Walsh uncritically accepted the Spanish Inquisition's version of the La Guardia case. Walsh's reply  disputed the accusation.
- The Mirage of the Many (1910)
- Isabella of Spain (1930)
- Out of the Whirlwind (novel, 1935)
- Philip II (1937)
- Shekels (blank-verse play, 1937)
- Lyric Poems (1939)
- Characters of the Inquisition (1940)
- "Gold" (short story)
- Babies, not Bullets! (booklet, 1940)
- Thirty Pieces of Silver (a play in verse)
- Saint Teresa of Ávila (1943)
- La actual situatión de España (booklet, 1944)
- El casa crucial de España (booklet, 1946)
- Our Lady of Fátima (Doubleday, 1947) ISBN 978-0-385-02869-1
- The Carmelites of Compiègne (a play in verse)
- Saint Peter, the Apostle (1948)
- New Catholic Encyclopedia, The Catholic University of America, 1967.
- Characters of the Inquisition, by William Thomas Walsh, TAN Books and Publishers, Inc, 1940/87. ISBN 0-89555-326-0
- Letters of William Thomas Walsh, kept in the archives of the Georgetown University Libraries, one of them described as "contains anti-semitic and anti-masonic references" - .