Arnold K. Garr, "Joseph Smith: Man of Forgiveness," in Susan Easton Black and Charles D. Tate Jr. (ed.), Joseph Smith: The Prophet, The Man (Provo, Utah: Religious Studies Center, Brigham Young University, 1993) pp. 127–36.
sidneyrigdon.com
William Smith, "A Proclamation", Warsaw Signal, 1845-10-29. The newspaper did not print Smith's statement until after he was excommunicated.