As noted at the beginning of the novel, Forsaken is a work of fiction but many of the characters were real people.  The Epilogue focus on what happened to the real-life  main characters:  Charles Gilbert Mears, Mabel Harriet Belote, Sarah Elizabeth Belote, Pauline Augusta Belote, Charles M. Pace, Henry and Charlotte Christian, Dr. George K. Vanderslice, and Lewter F. Hobbs.