The members represent four ancestral groups and two distinct Haplogroups E1b1b1a1 and R1b1b2. Using Variance as a probability theory the Variance Utility designed by Ken Nordtvedt predicts a common ancestor for all R1b1b2 members in the project to have a common ancestor 2192 years ago or 184 B.C.
Variance Theory

Interpreting Genetic Distance Within Surname Projects 37 Markers
Interpreting Genetic Distance Within Surname Projects 67 Markers
Interpreting Genetic Distance Within Surname Projects 111 Markers

Interpreting Results from DNA Testing

Whether in imitation of the Norman lords, or from the great convenience of distinction, the use of fixed surnames arose in France about the year 1000; came into England sixty years later, or with the Norman Conquest; and reached Scotland, about the year 1100. Origin of Surnames

Haplogroups in green have been confirmed by SNP testing. Haplogroups in red have been predicted by Family Tree DNA based on unambiguous results in the individual’s personal page.

1.(Kit 52277) Pennsylvania O’Dair test completed 1-June-2006. Oldest known relative, James O’Dair born between 1755-1760 unknown origin, died between 1830-1840 in Pennsylvania. Specific Haplogroup Identified with deep snp test as E1b1b1a1a* V12+ for this family. This is the V12+ map location. The E3b Haplogroup type represents about 2.5% of the population in the British Isles and 0.5% in Ireland. The O’Dair name was known to exist in Mid-Ulster region in Ireland between 1550-1700. Based on best known information to date, the haplotype is northeastern Egypt in origin, with a haplotype age of 15.2ky with a deviation from 18.0ky to 12.5ky. The origination point center of diffusion for V12+ is located in the area of the ancient cities of Abydos and Luxor (Ancient city of Thebes) in Egypt on the Nile river. It most likely arrived in the European gene pool via south central Europe in the Mediterranean or Iberia from north Africa. Time Most Recent Common Ancestor for ancient ancestry with historical migration theory.
Ysearch.org ID 24MDU
James O’Dair Cumberland County, Pensylvania Family Home Page
Family Pedigree
Oldest Picture of an O’Dair in Pennsylvania Line About 1910

2.(Kit 68410)Ontario Canada O’Dair’s test completed 9-11-2006, with oldest known relative William O’Dair SR. born 1769 in County Mayo, Ireland, and died July 14, 1853 in Ontario Canada. Haplogroup for this kit is R1b1a2a1a1b but has not been confirmed by deep sub clad test. Best estimate without deep snp test is R1b1b2. This kit has a 66 of 67 marker match with kit 123401.
Predicted haplotype in R1b1b2 (NEW)
(TMRCA)Time to Most Recent Common Ancestor for Kit Member
The link below is using the Ysearch database to match against potential identified R1b1 Modals for heritage and geographic orign. Ysearch Modal Comparison The link below is using the Ysearch Database to match against closest matches to your haplotype. Search date 10-9-2008
Ysearch Nearest Match 10-9-2008
(Two theories concerning the origins of Iberians)
(Neolithic Map Expanison of People)
Ysearch.org ID X94XC

3.(Kit 68434)West Boldon Tyne & Ware, England O’Dair’s, with oldest known relative William O’Dair Born 1769 Died 7-14-1853. Married Mary Peacock abt. 1795 Test completed 10-21-2006. Predicted Haplogroup R1b1a2 by Ftdna, but has not been confirmed by deep sub clad test.
Predicted haplotype in R1b1b2 (NEW)
(TMRCA)Time to Most Recent Common Ancestor for Kit Member
The link below is using the Ysearch database to match against potential identified R1b1 Modals for heritage and geographic orign. Ysearch Modal Comparison The link below is using the Ysearch Database to match against closest matches to your haplotype. Search date 10-9-2008
Ysearch Nearest Match 10-9-2008
Ysearch.org ID BW498
Family Pedigree
Picture of England O’Dair Grandparent’s Golden Wedding Celebration 1945

4.(Kit 80552)This family has ties to Illinois, Texas, Idaho, and Pennyslvania. Oldest know relative John O’Dair Born 1821 Pennsylvania living in Illinois 1860. Possible father John O’Dair born 1790-1800 in Pennsylvania on 1830 U.S. Census. This kit is 64/67 match with kit number 160994. Predicted Haplogroup R1b1a2 by Ftdna, but has not been confirmed by deep sub clad test. Test completed 4/25/2007.
Predicted haplotype in R1b1b2 (NEW)
(TMRCA)Time to Most Recent Common Ancestor for Kit Member
The link below is using the Ysearch database to match against potential identified R1b1 Modals for heritage and geographic orign. Ysearch Modal Comparison The link below is using the Ysearch Database to match against closest matches to your haplotype. Search date 10-9-2008
Ysearch Nearest Match 10-9-2008
(Two theories concerning the origins of Iberians)
(Neolithic Map Expanison of People)
Ysearch.org ID BSKE4

5.(Kit 123401)Predicted Haplogroup R1b1a2a1a1b Test Completed 7/22/2008, with oldest known relative William O’Dair SR. born 1769 in County Mayo, Ireland, and died July 14, 1853 in Ontario Canada. This kit has a 66 of 67 marker match with kit 68410.
Predicted haplotype in R1b1b2 (NEW)
(TMRCA)Time to Most Recent Common Ancestor for Kit Member
The link below is using the Ysearch database to match against potential identified R1b1 Modals for heritage and geographic orign. Ysearch Modal Comparison The link below is using the Ysearch Database to match against closest matches to your haplotype. Search date 10-9-2008
Ysearch Nearest Match 10-9-2008
Ysearch.org ID ZA9WJ


6.(Kit 160994)Predicted Haplogroup R1b1a2 by Ftdna, but has not been confirmed by deep sub clad test. Oldest known relative Jackson O'Daire (ODare Odarr) 1843 Ohio U.S. This kit is a 64/67 match with kit number 80552.Test completed 10/08/2009.
Ysearch.org ID YUHB8

7.(Kit 139483)This haplotype has been deep clade tested to R1b1a2a1a1b4

Members currently involved in other projects are the Y-DNA E3B, R1B Project, Ireland Heritage Project and Ulster Heritage Project.

Y DNA HAPLOGROUP TYPES IN THE PROJECT
Haplogroup Definition: A genetic population group associated with early human migrations and which can today be associated with a geographic region. It is important to note that even though female and male haplogroups may have the same letters, their definitions are different. Haplogroups represent the clustering of certain haplotypes together into lineages determined by mutations tested in the SNP test. These are all mutations of the Y chromosome that have occurred just once in human genetic history. All male descendants of these individuals bear the same mutation and all are descended from the same common male ancestor. Another use of haplogroups is to identify possible genetic sources for ancient cultures and migrations, although admixtures of types are common within any ethnic group. Within each haplogroup there are further divisions called "subclades." Haplogroups are "branches" of the Y chromosome tree, whereas subclades represent "twigs" on those branches.
Ysearch Haplogroup Distribution
Haplogroup Maps of the World and Europe
Haplogroups and Single Nucleotide Polymorphisms (SNPs)
Y-DNA Haplogroup Migration Map of the World
Time to Most Recent Common Ancestor of 11 Major Clades on the Y Chromosome Haplogroup Tree

R1B1 HAPLOGROUP
R1b1 Haplogroup R1b1 is the most common haplogroup in European populations. It is believed to have expanded throughout Europe as humans re-colonized after the last glacial maximum 10-12 thousand years ago. It was concentrated in refugia in southern Europe and Iberia. It is especially common in the west of Ireland where it approaches 100% of the population. This haplogroup contains the Atlantic modal STR haplotype.

R1b Haplogroup information wikipedia
National Geographic Atlas of Genetic Marker R1B-M343
R Haplogroup Chart ISOGG 2011
Familytreedna subclade testing for R1b and its subclade names
Collection of information on Genetic Genealogy
Vincent Vizachero R1 Tree Structure based on R1b1 Project Results. (New 10-31-08)
Vincent Vizachero R1b1b2 Tree Structure based on R1b1b2 Project Results. (New 11-8-08)
WHALEN’S Cheat Sheet for R1b1b: Project Members Predicated Subclade using the World Haplogroup and Cullen Subclade Predictor (Update 1/18/2009) NEW
R1B1B2 Subclades Diagram Estimated Ages(NEW 10/20/2008) Thanks to Peter at DNA_Forums for this fine diagram and Information!
Working Draft ChrY Tree for Haplogroup below R-M269 by Thomas Krahn  

E1B1B HAPLOGROUP
E1B1B This lineage is found in eastern and northern Africa, the Near East, and Europe, and is estimated to have originated about 23,000 years ago.

E1b1b M35 E3b Project Website
Haplogroup E1b1 M35 E3b Wikipedia Information
E-M35 Haplozone wikipedia 
Expansion of haplogroup E from Africa to Europe from the pre-Neolithic to the Phoenician colonization (9500-800 BCE)
National Geographic Atlas of Genetic Marker E3B-M35
Current Percentage of E3B in the British Isles
E Haplogroup Chart ISOGG 2011
Familytreedna subclade testing for E1b1b and its subclade names
Published Scientific Papers on E1B1B
Walk Through the Y for E-M35 Haplogroup 2009
Map - E3b Distribution in Europe, the Middle East and Africa
M78 V Series Haplotypes Diffusion Maps
V12+ STR’s compared to the March 2007 Cruciani samples of 81 populations and 6500 samples, showing the genetic distance on samples compared to kit 52277
E-M35 V12 Haplotype Splitstree Diagram Net Neighbor
E-M35 Haplotypes and Cruciani V12 Data Splitstree Net Neighbor
Working Draft ChrY Tree for Haplogroup E by Thomas Krahn 
"L" numbers are allocated by Thomas Krahn, at his convenience and discretion. One can see which "L" numbers he has allocated by visiting his Y-Chromosome Browser. Having an "L" number allocated often means that he is planning on investigating the SNP, but is no guarantee, and carries no implication that it will ever be placed in the Y-tree or offered for sale.There certainly would not be any change in existing nomenclature until if and when the SNP is determined to be non-private and placed into the Y-tree.

GENETIC TOOLS AND UTILITIES 
Dean McGee’s Y-DNA Comparison Utility Ysearch Mode
Whit Ahtey’s Haplogroup Predictor
World Haplogroup and Haplo-I Subclade Predictor
McDonalds Time to Most Recent Common Ancestor
Bruce Walsh Most Recent Common Ancestor Calculator
Tim Janzen ASD Calculator
Wimpy ASD Calculator
Ken Nordtvedt Interclade Dating Program
Family Tree DNA Y Chromosome Browser
Splitstree Software Website for Download Free

DATABASES FOR Y CHROMOSOME STR DATA
Ysearch Y-DNA Database
YBASE Y-DNA Database
YHRD Y-DNA Database
DNA Fingerprint(NEW)
Yfiler Haplotype Database(NEW)
US Y-STR Database(NEW)
SMGF Y-DNA Database
Oxford Y-DNA Database