The 1910 Census in Puerto Rico: A Surprising Lesson on Using Census Records for Genealogy

by Lisa Cooke | Jun 11, 2015 | 01 What's New, African-American, Ancestry, Beginner, Census, FamilySearch, History, images, Records & databases, Research Skills, United States

Sample census detail image from Ancestry.com.

Imagine taking a standard U.S. census form, translating it into Spanish, administering it to a newly-American population whose racial identity is highly politicized, translating the results back into English and trying to make sense of them 100 years later.

That’s what happens when you’re looking at 1910 census in Puerto Rico.

I stumbled on this story when my dad, a FamilySearch indexer, called my attention to a current project to index previously-missed parts of the 1910 census. A lot of the missing data was for Puerto Rico. The forms are in Spanish. My dad asked my help translating some of what he was reading, since I speak some Spanish. He was concerned that the computer was interpreting some of the abbreviations in English when they were likely Spanish abbreviations. I looked into it and what I found reminded me of these lessons:

From “The US Census and the Contested Rules of Racial Classification in Early Twentieth-Century Puerto Rico,” by Mara Loveman, in Caribbean Studies, 35:2 (July-Dec 2007), 3-36. Click image to go to the paper.

Always read the record itself and seek to understand it. Don’t just rely on the index! The published images of this census on Ancestry interpret “B” in the race column as “Black,” but a little research (thank you, Google Scholar!) reveals that the census takers entered the race in Spanish–so “B” was for “blanco” (read about it in this academic paper).

When you see someone’s race change over the course of a lifetime, consider the historical context. Puerto Rican census data from the early 1900s “show a population becoming significantly whiter from one census to the next” because of “changes in how race was classified on census returns,” says the same paper. Not only were there changes in the official instructions, but the enumerators increasingly didn’t follow them. In fact, on several thousand census entries in 1910 and even more in 1920, “individuals’ racial classifications were manually crossed out, and a different ‘race’ was written in. These post-enumeration edits, it turns out, were done by a select group of Puerto Ricans hired to supervise and ‘correct’ the work of fellow Puerto Rican enumerators.”

This little historical trivia is not so trivial if you’re wondering why your ancestor may be identified by a different race than you expected. Learn more about finding academic papers like the one quoted here in The Genealogist’s Google Toolbox by Lisa Louise Cooke. Her book shows you how to search Google Scholar for gems like this that make your family history more clear!