I am interested in the De Los Santos part of Coy. My grandfather always said the original name was De Los Santos Coy. I have not been able to make a connection. the earliest I have is Espiridion De Los Santos Married to Gregoria Garcia. The death certificate for Espiridion lists his parents as Teofilo De Los Santos and Petra Maldonado. Espiridion was born December 14, 1872 in Mexico (according to his death certificate.) Any information out there will be greatly appreciated.