What You Need to Know Before Digging Into Mexican Genealogical Archives
Mexico's colonial and post-independence archives are scattered, inconsistently catalogued, and frequently damaged by humidity or poor storage. If you are trying to trace Devargas lineages and pull obituary records from parish books, civil registries, and old newspapers, you will hit dead ends within the first few hours unless you understand how the system actually works. Most researchers fail because they go straight to digitized databases and expect results. There is no working centralized database for Mexican obituaries. What exists is a patchwork of physical locations, microfilm at the Family History Library, and a handful of private collections. The Devargas surname appears prominently in northern Mexico, particularly in Sonora, Chihuahua, and Coahuila, with some presence in central states like Guanajuato. Researching these records means understanding that "obituaries" in the Mexican context rarely look like modern newspaper death notices. They are embedded in baptismal registers, marriage records, burial logs, necrologies published in regional newspapers, and in some cases, formal actas de defunción from civil registry offices that only started in 1867. The so-called hidden heroes you uncover are usually middle-class landowners, local officials, church figures, or military officers whose names appear in passing across multiple record types rather than in any single dedicated source. I spent roughly three weeks in 2023 tracking a Devargas branch in Hermosillo and found that the civil registration office had boxes of unindexed death certificates from 1910 to 1940 stacked in a room with no climate control. The paper was brittle. Someone had used tape to repair spines. I had to photograph each page myself with a phone camera in natural light near a window because the office staff had no scanner and no interest in helping foreigners locate specific names. That is the reality of this work. It is slow, unglamorous, and heavily dependent on finding a local contact who can get you into the right room.
How to Actually Find Devargas Obituary Records
Start with the Estado de México's online portal for historical parish records, then move to theArchivo General de la Nación in Mexico City if your research spans multiple states. The AGN has a significant collection of colonial-era documents, but the finding aids are in Spanish and poorly organized for surname-based searches. You need to know the town or municipality where the Devargas family lived before you go in. Searching by surname alone across the entire country is not viable. For obituaries specifically, check the Hemerografía Nacional, which is a digital newspaper archive maintained by the Biblioteca Nacional de Antropología e Historia. Search for "Devargas" alongside terms like "falleció," "difunto," "necrología," or "obituario." The results are messy. OCR quality varies wildly across older publications. I found a Devargas necrology in El Siglo de Torreón that the digitization missed entirely because the font was a heavy blackletter style. I had to request a scan of the physical microfilm instead, which took six weeks and cost about 800 pesos in reproduction fees. Catholic church records predate civil registration and often contain the most detailed death information. Parish priests in rural areas kept burial registers that noted cause of death, age, marital status, and sometimes the names of surviving relatives. In Sonora, the Diocesan Archive in Sonora has a digitization project in progress, but it is incomplete and requires an appointment. You email them, explain your research, and hope someone replies. Processing time ranges from two weeks to three months depending on the volume of requests.
Common Pitfalls That Waste Weeks
The biggest mistake researchers make is assuming variant spellings of Devargas will be interchangeable. The surname appears as Devargas, de Vargas, and in some documents simply Vargas. These are not always the same family. In colonial records, the "de" was often added or removed depending on the priest's preference or the family's social aspirations. I spent four days cross-referencing a Devargas line in Chihuahua only to realize the de Vargas entries I had been pulling were a completely different lineage with no connection. The workaround was to focus on geographic clustering. The true Devargas family stayed within a specific set of municipalities across multiple generations. Tracking that geographic consistency filtered out the false matches. Another issue is the unreliable dating in older records. Mexican civil registration used the Gregorian calendar, but some rural parishes recorded dates using the old style or simply omitted years entirely. When I encountered a Devargas burial entry from 1823 with no year listed, I had to cross-reference it with a nearby baptismal record for the same surname that included a date, then work backward using known family structure. It worked, but it required knowing basic genealogical logic rather than relying on any search tool.
Get the Full Details

What These Records Actually Reveal
When you pull enough Devargas obituaries and death records together, a pattern emerges. The family appears to have been involved in landholding, local governance, and in some cases, the Mexican Revolution as either federal or revolutionary sympathizers depending on the region. The obituaries themselves are brief and formulaic. They list name, age, cause of death, and surviving family members. The real historical detail comes from connecting those names to other record types. A Devargas who died in 1915 in Ciudad Juárez might appear in a military roster, a land grant document, and a tax record from the same year. That triangulation is what turns a name on a page into an actual historical figure. There is also the problem of unmarked graves and undocumented burials. In smaller towns, especially during the revolution and the Cristero War period, many deaths were never formally registered. I found references to Devargas family members in oral histories recorded by local historians that never appeared in any official document. Recording those accounts takes time and a willingness to visit towns where no digital infrastructure exists. The payoff is real but unpredictable.
Tools That Help and Tools That Do Not
Ancestry.com and FamilySearch have some Mexican collections, but their coverage is superficial for obituaries. You will find indexed baptismal and marriage records, but death records and newspaper necrologies are largely missing. The one useful tool is the Mexican Genealogy Facebook groups, particularly ones focused on Sonora and Chihuahua. Local researchers often share photographed pages from private family bibles or old notebooks that are not available anywhere else. I found a Devargas family tree in a group that traced the line back to the 1700s in Sonora, and it filled gaps that no archive had. You have to approach these groups respectfully and offer something in return rather than just asking for free research. For the actual search process, I recommend building a spreadsheet with columns for name, date, location, record type, source citation, and notes. Every Devargas record you find should be logged this way. Without a system, you will lose track of which archive you pulled each document from and you will waste days repeating searches.
When to Stop and What to Accept
Some branches of the Devargas family simply do not have surviving records. Wars, fires, flooding, and neglect have destroyed large portions of Mexican archival material. The 1911 fire at the Guerrero state archive is a well-known example, but similar losses occurred in other states and are less documented. If you are hitting a wall where no records exist past a certain point, that is not a failure of your method. It is a failure of the archive. There is no workaround for missing documents other than shifting to indirect evidence like land records, census data, or probate files that might mention the deceased person. The work is not fast. A single Devargas lineage in a single municipality typically takes two to four weeks of active research to map reasonably well, assuming you have access to the relevant archives and can read 18th and 19th century Spanish handwriting. Some lines take months. Others cannot be completed at all. The value is in the fragments you recover, not in a complete picture that rarely exists for Mexican families outside the elite classes.
