Demetrio died about 2001 in Roswell, Chaves, New Mexico aged ~87.
Sources
1920 Census: "United States Census, 1920" citing Affiliate Publication Number: T625; Affiliate Film Number: 1075; Line: 29; FHL microfilm: 1821075; Record number: 42342; FamilySearch Record: M4V5-QBT (accessed 14 January 2023) FamilySearch Image: 33S7-9RXR-NKX Image number 00890 Demetrio Nevarez (6), single son, in household of Miguel G Nevarez (48) in Doña Ana, New Mexico, United States. Born in New Mexico.