Links to individual pages on YFull's Y-Tree, leading to the haplogroup branches represented by participants in the Brewer DNA Project have been added in the column of links on the right of this page under the heading Brewer Y-DNA Project.
As of this date there are eight haplogroup branches on the Y-Tree that have been determined by members of the Project who have taken Family Tree DNA's Big-Y test and followed with analysis of the test results by YFull (a company not commercially affiliated with FTDNA).
To date the following subgroups of the Brewer DNA Project are represented:
Adam Brouwer, Gowanus, L. I. (three members)
Ambrose Brewer (two members)
Arthur Brewer (two members)
Brewer of Essex, England (one member)
Brewer of Gloucestershire, England (one member)
Brewer-Lanier (a.k.a. Lanier-Brewer, nine members)
Jan Brouwer/Hermans (four members)
John Brewer of Sudbury, Massachusetts (one member)
All subgroups of the Brewer DNA Project can be found on the Project's Y-DNA Results page. This page includes STR testing data for tests ranging from 12 markers to 111 markers. The subgroup headings are determined by the earliest known (or suspected to be earliest known) ancestor common to members of the group. "Brewer-Lanier" or "Lanier-Brewer" refers to those believed to be descendants of George Brewer of Brunswick Co., Virginia (whose first wife was Sarah Lanier). The sole members of the subgroups labeled "Brewer of Essex, England," and "Brewer of Gloucestershire, England" are currently found within the subgroup labeled "Ungouped" on the Y-DNA Results Page.
The links found on the right lead to the current haplogroup designations as determined by YFull. They may be changed and updated as more data is analyzed and as YFull updates their YTree. The version of the YTree as of this writing in v4.09. The "Brewer-Lanier" haplogroup branch is identified by I-Y15031, and includes two sub-branches identified by I-Y21524 and I-Y23708.
Members of the Brewer DNA Project interested in identifying their own branch on the YTree can do so by ordering the Big-Y test through their account at Family Tree DNA. The Big-Y test (a SNP test) is only available to those who have previously taken one of FTDNA's STR marker tests. Those new to Y-Chromosome testing will first have to take one of the available Y-DNA tests prior to ordering a Big-Y test. Questions should be addressed to the administrators of the Brewer DNA Project through e-mail links found on the Project's main page.
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