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Name Trails

Name Trails helps Brazilians investigate names, surnames, and family histories through official data, historical context, and safe documentary research paths.

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Fotografias antigas, documentos históricos e mapa com alfinetes sobre uma mesa, junto a um diagrama genealógico e uma lupa.
Genealogical Research26/09/20265 min read

How to build an ancestor timeline using records from different towns and cities

Learn to organize events, dates, places, and sources in a genealogical timeline without confusing namesakes or assuming kinship.

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Mesa de pesquisa genealógica com duas certidões antigas de grafias diferentes, fotografias de família, árvore genealógica, lupa e caderno de verificação.
Genealogical Research25/09/20264 min read

Different names and dates on certificates: how to tell if they refer to the same person

A practical method for comparing spellings, dates, parents, places, witnesses, and sources before merging an ancestor’s records.

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Mesa de pesquisa genealógica com certidão brasileira sob uma lupa, mapas de Portugal e Itália, fotografias antigas, listas de imigrantes e documentos de naturalização.
Genealogical Research14/09/20268 min read

Certificate only says Portugal or Italy: how to find an ancestor’s parish or town of origin

When a Brazilian record says only that an ancestor was born in Portugal or Italy, the most efficient route is to reconstruct the locality in layers: family civil records, naturaliz...

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Mesa de pesquisa genealógica com notebook exibindo certidão eletrônica validada, celular com confirmação de validação, fotografias antigas e árvore familiar.
Documents & Archives14/09/20266 min read

Brazilian electronic full-content certificate: how to request, validate and materialize it for genealogy

A practical guide to requesting a Brazilian full-content civil certificate online, validating the digitally signed PDF, and deciding when genealogical research actually requires a ...

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Pessoa pesquisa uma árvore genealógica em uma mesa com certidões de nascimento, casamento e óbito, fotos antigas e uma lupa.
Genealogical Research14/09/20268 min read

How to Find Your Great-Grandparents' Names: Which Records to Search First

A practical method for reconstructing the great-grandparent generation with birth, marriage, and death records without skipping relationships or confusing namesakes.

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Duas certidões sobre uma mesa de pesquisa com fotografias antigas de família, árvore genealógica ao fundo, lupa, livros, globo e caderno.
Documents & Archives13/09/20267 min read

Brief or full-content certificate: which one to request for genealogical research in Brazil

A brief certificate usually covers basic facts; full content is worth it when research depends on details, amendments, or the complete wording of the civil record.

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Mesa de pesquisa genealógica com documentos antigos, lupa sobre variantes de sobrenomes e notebook com busca por Silva.
Genealogical Research13/09/20267 min read

Surnames with de, da, dos and joined spellings: how to search variants without losing records from the same family

A practical matrix for searching surnames with particles, joined forms, diacritics, and indexing errors without mistaking spelling variation for proof of kinship.

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Livro paroquial de batismos aberto sobre uma mesa, volumes antigos, crucifixo e notebook com o FamilySearch ao fundo de uma igreja.
Documents & Archives12/09/20268 min read

How to find old baptism records when a birth is missing from civil registration

A practical workflow for locating parish baptism records by place and period, using the FamilySearch catalog and images, and understanding why a negative index search does not prov...

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Pessoa consulta um sobrenome em um notebook diante de um mapa estilizado do Brasil formado por retratos e marcadores de localização.
Maps and Distribution12/09/20266 min read

How many people have my surname? How to use IBGE’s Nomes no Brasil without confusing frequency with kinship

Learn how to check your surname’s frequency and geographic distribution in Nomes no Brasil, understand the 2022 Census disclosure limits, and avoid treating a shared surname as pro...

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Pesquisador usa um notebook com uma tela do FamilySearch diante de livros de nascimentos, casamentos, óbitos e registros paroquiais, documentos antigos e uma bandeira do Brasil.
Documents & Archives10/09/20266 min read

FamilySearch in September 2026: how to search 70 million Brazil records

See which Brazilian collections received new records and how to search by state, record type, index, images, and Full Text.

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Mesa de pesquisa genealógica com notebook exibindo árvore familiar, livros antigos de registros civis e paroquiais, mapa do Brasil destacando São Paulo e Santa Catarina, documentos manuscritos e lupa.
Documents & Archives05/09/20266 min read

FamilySearch expanded Santa Catarina and São Paulo records: how to search the August 2026 collections

See which Santa Catarina and São Paulo collections were expanded in August 2026 and how to switch between indexes, full-text search, and images to find records.

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Pessoa compara dois perfis genealógicos lado a lado em um notebook, cercada por fotos antigas, livros de família e anotações de pesquisa.
Genealogical Research04/09/20266 min read

FamilySearch changed duplicate-profile merging: how to review sources and avoid combining the wrong people

Learn what changed in FamilySearch merging and use an identity, dates, places, relationships, and sources checklist before combining profiles.

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Surnames

Profiles that investigate possible origins, variants, distribution and limits of interpretation of each surname.

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Mesa com registros antigos, árvore genealógica, mapa de migração e lupa sobre o sobrenome MacAllister em um documento manuscrito.
Surnames15/08/20269 min read

How to discover the origin of your surname without confusing the etymology, distribution and history of your family

Discovering the origin of a surname requires separating meaning, geographic distribution, and your own family's documented lineage.

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Mapa estilizado do Brasil com marcadores de frequência de sobrenomes e documentos de registro civil ao lado
Surnames02/08/202610 min read

Does the most common surname in your city prove some family origin? Not necessarily

The frequency of a surname reveals its distribution in the 2022 Census, but does not prove local origin, kinship, ethnicity, nobility or right to citizenship.

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Proper Names

History, popularity, formation and transformation of names used in Brazil.

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Notebook e laptop sobre uma mesa mostram uma curva de popularidade de nomes por década, com mapa do Brasil e referências visuais ao IBGE.
Proper Names01/09/20266 min read

Which decade was your name most common? How to read IBGE's curve without confusing frequency with fashion

Learn how to identify the generational peak of your first name in Nomes no Brasil and why frequency by decade is not the same as a naming-preference rate.

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Fluxograma para interpretar quando um nome não aparece na busca do IBGE
Proper Names04/08/202610 min read

His name does not appear in the IBGE: does this prove that he is rare?

An empty result in the IBGE name search may reflect spelling, clipping, period or secrecy limits and does not prove that a name is unique.

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Pessoa consultando a ferramenta Nomes no Brasil e comparando frequência, mapa e linha do tempo de um primeiro nome
Proper Names03/08/202610 min read

How to search for a compound name in the 2022 Census without interpreting the wrong result

Learn how to consult compound names in the IBGE tool and distinguish first name, frequency, map and temporal trend without drawing undue conclusions.

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Maps and Distribution

Territorial analyses of given names and surnames using official data and migration context.

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Mapa do Brasil dividido em municípios e colorido por concentração de sobrenome, observado por uma lupa, com figuras de pessoas e referências ao Censo 2022.
Maps and Distribution01/09/20266 min read

Where is your surname most concentrated in Brazil? How to read the 2022 Census map

Use IBGE data to compare municipal surname concentration without confusing counts, percentages, etymology, and family origin.

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Pessoa consulta um sobrenome em um notebook diante de um mapa estilizado do Brasil formado por retratos e marcadores de localização.
Maps and Distribution12/09/20266 min read

How many people have my surname? How to use IBGE’s Nomes no Brasil without confusing frequency with kinship

Learn how to check your surname’s frequency and geographic distribution in Nomes no Brasil, understand the 2022 Census disclosure limits, and avoid treating a shared surname as pro...

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History of Names

Spelling changes, family transmission, immigration, marriage and registration practices.

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Mesa de pesquisa genealógica com retrato antigo de uma mulher, certidões de casamento, nascimento e óbito, livros de registros, árvore familiar e prancheta com pistas para encontrar o nome de solteira.
History of Names17/08/202612 min read

How to find out a grandmother's or great-grandmother's maiden name when the documents only contain her married name

A protocol for reconstructing an ancestor's birth surname by comparing marriage, children's records, religious sources and collateral documents.

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Mesa de pesquisa genealógica em tons sépia com registros antigos, lupa e árvore familiar ligando os mesmos pais a dois irmãos identificados com sobrenomes diferentes.
History of Names16/08/202612 min read

Siblings with different surnames: how to interpret old records without separating the same family

In ancient Portuguese-Brazilian records, brothers could use different surnames. Understand why and which documentary links to cross before separating a family.

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Among names, places, and documents

Name Trails investigates how names and surnames emerged, spread across Brazil, and changed over time. We combine linguistic and historical sources, official distribution data, and guidance for locating documents. Each article distinguishes confirmed facts, hypotheses, and family traditions. A surname may offer clues, but by itself it does not prove kinship, ancestry, nobility, or a right to citizenship. Our goal is to help readers research methodically, record sources, and recognize the limits of the available evidence.

Responsible: Curadoria de Nomes e Origens