Green Crow DNA Research

Explore the Crow DNA Investigations

The Crow(e) DNA Study identifies my paternal line with the Green Crow group associated with Sir William Crow of the Isle of Man. These two companion pages explain the project's findings and the historical question we are working to answer.

What Y-DNA Can—and Cannot—Tell Us

Y-DNA passes along the direct biological paternal line, usually from father to son. It can help distinguish paternal lineages and identify men who share a paternal ancestor. The surname is a clue, not a genetic guarantee: two men named Crow may belong to different paternal families, and two men with different surnames may share a paternal line.

Short tandem repeat (STR) comparisons help identify potentially related paternal lines. Single nucleotide polymorphisms (SNPs) identify branches on the paternal genetic tree. Neither test supplies a complete list of ancestors or proves every name on someone’s family tree.

Many Crow Names. More Than One Paternal Family.

The volunteer-run Crow(e) DNA Study began in January 2003. Its published background describes 19 paternal Crow/Crowe family groups considered unrelated within the genealogical time frame examined. Color names, including Green Crow, were assigned to make the different matching groups easier to discuss.

That does not mean all Crow families everywhere have been tested, or that 19 is a timeless total. It describes the project’s published interpretation of its participating paternal lines.

Green Crow and the Sir William Lineage

The Crow(e) DNA Study Project identifies a Green Crow paternal DNA group and traces its research lineage to Sir William Crow (approximately 1547–1627) of the Isle of Man. Its published results identify kit 28728 with Sir William as the participant’s reported earliest ancestor and list American Green Crow branches, including testers who trace their records to Walter Crow of Maryland and Kentucky.

I belong to the Green Crow paternal group identified by the study. I accept and credit the researchers’ conclusion about that group’s connection to the Sir William Crow lineage. What I have not yet found is the named, documented succession of ancestors joining my American Crow family to the Manx records. That missing paper trail is the question I am working to solve—not a reason to dismiss the DNA study.

Follow the Research

The most useful pages are not necessarily the ones with the most numbers. Start with the study’s written explanations, then explore the underlying results if you want to dig deeper.

The Group Time Tree and frequency pages could not be independently inspected without the required access. Links are supplied as navigation, not a claim that every visitor can view all data. The original project reports and participant information belong to their respective authors and contributors.

What Would Help Solve the Mystery?

The genetic trail gives us a direction. The remaining task is to find the names and documents that bridge the American and Manx family records: parish registers, wills, land and probate records, and migration clues. I’m particularly grateful to the Crow(e) DNA project’s volunteer researchers and to the people who helped pay for my testing, making this investigation possible.

Have a Crow or Crowe family record, photograph, documented lineage, or a research lead that might connect these branches? I'd enjoy hearing from you. Please use my contact form and mention The Crow Identity. I'll reply by email so we can arrange to exchange records directly.

Don't be alarmed by the security Crow on the contact page. It's my general form, and the security measures help keep spammers and automated submissions out.