The FTDNA YDNA Walker Project is a very large project, with over 600 kits, organized in about 70 groups. Some groups, as defined by the project, are based on YDNA evidence suggesting a relatively recent common ancestor. These groups are typically identified by numbers (e.g., Group 1, Group 2...). Other groups are defined as sharing the same haplogroup, but containing no relatively close common ancestor (e.g., the E1b1 Group, which contains no kits sharing a relatively recent ancestor, but all of which are in the E1b1 haplogroup). Almost 49% of the kits are "isolated"---that is, the data does not show a relatively recent common ancestor for them among the other 600+ kits.
The following groups are discussed here because they include persons present within the broad area covered by the Tapestry Project, or in some cases, because they come up in the discussion of Walkers within the Tapestry Project.
The following Walker lineages (and associated YDNA Groups) are of broad interest within the Tapestry Project. Some of these lines have been conflated in various genealogical treatments. While many genealogists believe these lineages to be connected to a common patriarch, current YDNA evidence often refutes these interpretations.