Hi Lucy, I have your family lines posted on Rootsweb.com, you can go to family tree, then pedrigree in text form. From my understanding all the Caldera families are actually from one family tree. The problem is the missing years for records to connect them together.
I went to El Durazno in 2003 with your cousin Florence Cuevas, daughter of Donaciano Cuevas, brother of Delfina. Donaciano was married to my grandfathers sister, Paula Castanon.
If I can be of any help to you just let me know.