The books are:
"The Terrible Trail: the Meek Cutoff, 1845" by Clark & Tiller
"The Brazen Overlanders of 1845" by Donna Wojcik
"Following the Lost Meek Trail in Central Oregon" by the Crook County Historical Society
also, the historical novel:
"A Heart For Any Fate" by Linda Crew - This one was written about my own family, the Kings, so of course I had to read it. :)
I see the Wallaces & the Herrens in the roster in my books.