Frederick E. Kerlin was Lt. Edward F. Beale's clerk on his wagon road expeditions out west 1857-59. Beale named the tallest mountain near Seligman, AZ after the current Secretary of War, John B. Floyd; whereas, Fred Kerlin only got a nearby watering hole, Kerlin's Well, named after him.
I find the successful search by James Tanner of Phoenix AZ to find his ancestor’s use of the BWR and his 1877 writings at Kerlin’s Well most interesting, and it shows a view of the nearby Beale Wagon Road, as well. See this website (and 39 min. BYU webinar) at:
Timeline of events include: James Tanner talking with Jack Beale Smith at 23.24; the Beale Wagon Road view at 31.50; Kerlin’s well at 32.45; and H. Tanner’s 1877 name written on a nearby rock at Kerlin’s Well at 37.20.
A brief (0.55 min) video clip of a separate visit to Kerlin's Well is found at:
You will note that no GPS coordinates for Kerlin's Well are given in either video, as the well is located on a private ranch north of Seligman, AZ.