Lorenzo Saunders (affidavit with William H. Kelly of Sep 20, 1884; interview by E. L. Kelly on Nov 12, 1884; letter to Thomas Gregg, Jan 28, 1885; statement to Arthur Deming, July 21, 1887).
John H. Gilbert repeatedly confirmed that Lorenzo Saunders had reported seeing Rigdon prior to 1830 (letter to James T. Cobb of Oct 14, 1879; and 1881 interview by William H. and Edmund L. Kelley; letter to Thomas Gregg, June 19, 1881).