Composite Project Data
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Composite Project Data

International Lindsay* Surname DNA Project

Last update of this database spreadsheet:   March 16, 2010, with complete 11th Round testing additions.

Copyright March 2010 by Ronald G. Lindsay, all rights reserved with the composite database content.

Click on Composite Haplotype Database to return to the basic information and explanation associated with the International Lindsay Surname Haplotype Database.

Table Notes:

  1. The first column, on the left of the table, is a Lindsay Code Number that is simply an L# that was arbitrarily assigned to each participant by the Project Coordinator to establish the confidentiality of the DNA sample.

  2. The second column is the Laboratory Case Number, assigned to this sample by the laboratory upon receipt of the DNA sample.

  3. The third column is the Surname column and is the actual spelling of the Lindsay (how ever spelled) surname of the participant.

  4. The fourth column is the "inferred haplogroup" that is predicted from the individual's marker alleles based on SNP testing performed on others with similar allele values on several designated markers. The nomenclature is derived from the 2008 version of the ISOGG SNP Tree.

  5. The fifth column is the haplogroup information that has been determined from actual SNP testing on the DNA of this specific individual and represents the most "downstream" subclade SNP that tested positive.

  6. The DNA Group Number column provides a grouping of participants based on a maximum of four (out of 43 markers), one-step DNA marker mismatches between two or more participants.

  7. The Test Round # column simply designates in which round of testing this particular participant came into the database.

  8. The next 26 columns, marked 1-26 near the top of the table, represent the original 26 loci where the STR (Short Tandem Repeat) allele values were measured. The standardized published DYS numbers and other nomenclature for a particular locus are also listed.

  9. Columns 27 through 45 represent the allele values for the additional 17 markers associated with the 43-marker upgrade testing.

  10. The last column is simply a duplication of the L# codes placed on the right of the screen to help correlate the individual DNA profiles from left to right.

DNA Grouping

For comparison purposes, the current International Lindsay Surname DNA Project participants have been divided into categories (DNA Group 1 thru DNA Group 17) where appropriate, with the balance of those participants who do not currently match at the end of the tableThese DNA Groups will contain all the participants who have matches which indicate they likely have a Most Recent Common Ancestor (MRCA) within the timeframe when surnames became common practice.  Each DNA Group will be composed of two or more people who have no more than four (out of 43 markers), one-step, marker mismatches.

The "earliest known ancestor" will also be provided for each of the participants in these seventeen (17) unique DNA Groups to assist in developing the Most Recent Common Ancestor (MRCA) for each of these groupings.  The "earliest known ancestor" should not be confused with the "earliest known proven ancestor".  It is the hopes of the Lindsay Surname DNA Project that one day soon our participants will fully document their genealogies and we will be able to use the "earliest known proven ancestor" term with confidence for all the participants.

To really be meaningful, those participants in the database who have not been grouped due to having more than four (4) mismatches (out of 43 markers) with the other participants will be required to wait until the International Lindsay Surname Haplotype Database grows with the addition of more Lindsay males from which hopefully we will find other Lindsay lineages that provides fewer mismatches for their haplotype, yielding a potential common ancestor in the nearer term.

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* It has been established that the use of the Lindsay surname, throughout this web site, implies all the accepted different spellings of the surname found in the Orthography section of this web site.  

Click on Database Home Page to return to the International Lindsay Surname Haplotype Database home page.