OP says he witnessed JS translating the BOA.

Jul 10, 1859
Speech / Court Transcript
Orson Pratt
Scribed Verbatim

Orson Pratt, "Personal Reminiscences and Testimony Concerning the Prophet Joseph and the Church, Etc." (10 July 1859), Journal of Discourses (Liverpool: Amasa Lyman, 1860), 7:176

Journal of Discourses
Orson Pratt, Joseph Smith, Jr.
Latter-day Saints, Reading Public

I then became intimately acquainted with the Prophet Joseph Smith, and continued intimately acquainted with him until the day of his death. I had the great privilege, when I was in from my missions, of boarding the most of the time at his house, so that I not only knew him as a public teacher, but as a private citizen, as a husband and father. I witnessed his earnest and humble devotions both morning and evening in his family. I heard the words of eternal life flowing from his mouth, nourishing, soothing, and comforting his family, neighbors, and friends. I saw his countenance lighted up as the inspiration of the Holy Ghost rested upon him, dictating the great and most precious revelations now printed for our guide. I saw him translating, by inspiration, the Old and New Testaments, and the inspired book of Abraham from Egyptian papyrus.

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