Below is Estevan's death certificate. According to this record, he was a White male who was married to Delfina Tores. He was born on 30 October 1887 and died on 20 September 1936 in Socorro, New Mexico. His occupation was clerical, and he worked for the conservancy district; he last worked there in February 1932. His father was Samuel Zimmerly, who was from Germany (Samuel's marriage records indicates that he was "Swiss".) His mother was Paublita Torres of Socorro. R.M. Zimmerly was the informant for this record.
His death certificate lists a number of ailments that he suffered from. Since it's hard to read the handwriting, I won't try to guess what they were. My understanding was that he was left paralyzed from a botched operation, and that this somehow led to his death.