First published in 1887, Gooch's Face to Face with the Mexicans, is on-line here in a very readable format. It includes the many charming illustrations by Isabel V. Waldo, as well as portraits of the characters in my novel, Agustin de Iturbide y Green and his mother, Dona Alicia Green de Iturbide.
Note: an edited (severely abridged) version with an introduction by C.H. Gardiner was published by Southern Illinois University Press in 1966. However, said version does not include the material about the Iturbides.