My ignorance of Spanish prevents me from understanding the message from Dr. Ramos Benitez. I think he is saying that the story appeared in the Louisville Courier, October 1846; was used by Ned Buntline in a novel, and also in the song by Hewitt. If this is correct, then, as we had assumed, the 'maid' is fictional.

I hope Escamillo or someone else can make a proper translation.