I found in the records from Tamazula Jalisco back in the late 1600's 
the scribe spelled Juan as Joan on many records.. that's a Portuguese 
spelling. In Jerez I noticed my Tovar ancestor is spelled Thobar, 
Thovar, Tobar and Tovar... all the same family. I would think that's a 
Spanish pronunciation and spelling. Since our ancestors never saw the 
records and sometimes were not even the person giving the information 
it's amazing that so many are traceable and correct! In Jerez I find 
the surname Correa, in Tamazula it's Coria, I'm wondering if it's the 
same family name? Is Davila the same as De Avila? The ancestors must 
get a chuckle from our searches and questions.
Linda in Everett