FamilySearch Webinar “Crossing the Frontera” Explains Mexico to U.S. Border Crossing Records

FamilySearch - Crossing the Frontera

If you have Mexican ancestors, who like mine, immigrated to the United States in the late 1800s or later, you spend a lot of time looking for and at border crossing records.

About 1906, the U.S. federal government implemented a new system for collecting information about immigrant aliens who arrived at U.S. ports of entry (land ports) along the Mexican border. This information was captured on manifest cards, with a separate card generated for each individual, including children and infants. Some of these land ports had already started recording this type of information as early as 1895, but it was around 1906 that the federal government standardized this record keeping process across all Mexican land ports.1

Finding your ancestors’ records and getting the most out of the data captured in those records can sometimes be a challenge. This excellent FREE webinar by my friend and colleague Debbie Gurtler, AG®, of FamilySearch is an invaluable source for maximizing your time working with these border crossing records. I frequently refer back to this webinar for reminders, and I make it required viewing the graduate-level MLIS/U.S. genealogy course I teach each summer.

About the Webinar

Although this webinar is a few years old, the information covered is still current.

Debbie starts off with a timeline of when border arrivals from Mexico to the U.S. started being regulated and documented. She explains where to find the records (digitized images as well indexes) and how the records are indexed and organized. She describes the various types of border crossing records and the type of information captured, and also highlights how to use clues from those records to find relevant records in Mexico. Debbie illustrates these strategies using a case study.

A helpful handout is included.


  1. Mexican Border Crossing Records,” The U.S. National Archives and Records Administration, National Archives: Research Our Records, Updated 4 April 2011. ( : accessed 25 May 2018.

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1 thought on “FamilySearch Webinar “Crossing the Frontera” Explains Mexico to U.S. Border Crossing Records”

  1. Hello, I am having difficulty accessing this video. When I click on the play button, it takes me to another page saying that it is not found.

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