I'm looking for documentation to confirm that US Grant, Andrew Hull Foote and Charles de Arnaud met in Cairo, Illinois, in early January 1862 to discuss the Tennessee River Campaign.
I find no reference to the meeting in the Official Records, Grant’s memoirs, Simon’s Papers of Ulysses S. Grant, Tucker’s biography of Foote, or Jay Slagle's biography of Seth Ledyard Phelps. I have Googled extensively using various spellings of "de Arnaud" and have found a lot but no mention of the meeting.