Joseph Knight Jr. recounts that Joseph spoke of having a vision of an angel.
Joseph Knight, "Reminiscences," ca. 1832 (August 16, 1862), MS 286, Church History Library
My father bought three other farms and hired many hands; in 1827 [1826] he hired Joseph Smith; Joseph and I worked and slept together. my Father said Joseph was the best hand he ever hired. we found him a boy of truth, he was about 21 years of age. I think it was in November [1826] he made known to my Father and I, that he had seen a vision, that a personage had appeared to him and told him <where> there was a gold book of ancient date buried, and if he would follow the directions of the Angel he cold get it.