Search billions of records on Ancestry.com
   
Thrift /Frith /Firth Surname DNA Project http://tinyurl.com/3vjhms/documents/fam_grouping.htm
Family groupings based on Y-DNA marker values, using color to show differences between family groups.
Distances from the modal values are color-coded here.  See the legend below the chart.
For each individual and each marker tested, the number shown in the chart is the individual's value for that marker.  Closely related individuals will have almost identical marker values.  
BUT the problem is that unrelated people in the same haplogroup will ALSO share many marker values, so we have to be able to tell the difference between being related, vs. just being in the same haplogroup (or subgroup) but unrelated (within "genealogical time").
To do this, we 1) note the modal (~average) markers for the relevant haplogroup (or subgroup); 2) find the markers for each specific family that differ from the haplogroup modal values;  and 3) compare these unique markers when comparing different individuals.
A given family will have CHARACTERISTIC MARKERS that are different from their haplogroup's modal values.
          For a clearer explanation of familial markers, please see Diana Gale Matthieson's page, "Signature Markers":  What They Are and How to Use Them
In this chart, these family-specific markers are indicated by a vertical column where most members of a family have similar color shades and similar marker values. 
          For instance, descendants of Nathaniel Thrift of VA have markers 439, 460, YCAIIa, 576, CDYa etc that differ from their haplogroup's modal values. Most of these markers are in FTDNA's set of markers 26 through 37.
          If other people from the same haplogroup are tested, chances are they will be close to the haplogroup modal values, so they will probably have to test at least 37 markers, in order to compare these unique markers.
          However, the descendant of Isham Thrift has several unique markers (that differ from the haplogroup mode) even among the first 12 markers tested (390, 385a, 385b, 439).
          If other people from the same haplogroup are tested, they will only need to test 12 or 25 markers IF the goal is merely to see whether they are related to the known descendant of Isham Thrift.
          Clearly, Isham and Nathaniel have different markers, so they are unrelated.  Likewise, Isham Thrift's markers differ from those of the two Friths.
For the two descendants of Nathaniel Thrift, who are 6th cousins (once removed), the DNA results confirm the genealogical information: they ARE closely related but there are three differences (458, 464c, & 456), i.e. they are not extremely close.
This is actually quite reassuring.   If the DNA results disagreed with the known genealogy, we would have to investigate BOTH the genealogy and the DNA testing carefully to find the source of the discrepancy.  
More importantly, when the genealogy is unknown, the DNA results can show us whether or not two families are (probably) related.
Thus the DNA results tell us that despite the shared surname, Robert, Nathaniel and Isham Thrift are NOT related to each other. 
The two Friths appear to be unrelated (given the limited data we have for one of them so far).
Stay tuned, when I get time I will put up an analysis of non-surname matches.  For one line, this will be important information.
mutation rate classifications are based on Tim Jantzen's rates
mutation rate: slow medium medium medium medium medium slow slow medium medium slow medium FAST medium medium slow slow medium slow medium FAST FAST FAST FAST FAST medium medium medium medium FAST medium FAST FAST FAST FAST medium slow slow slow slow slow slow slow slow slow medium medium slow medium medium medium slow slow slow FAST slow medium FAST medium medium slow slow slow medium slow slow slow
Link to the site map page FTDNA Marker Order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 FTDNA Marker Order
Marker ID 393 390 19 / 394 391 385a 385b 426 388 439 389-1 392 389-2 458 459a 459b 455 454 447 437 448 449 464a 464b 464c 464d 460 H4 YCA IIa YCA IIb 456 607 576 570 CDYa CDYb 442 438 531 578 395s1a 395s1b 590 537 641 472 406s1 511 425 413a 413b 557 594 436 490 534 450 444 481 520 446 617 568 487 572 640 492 565 Marker ID
FAMILY GROUP Kit # line ancestor b. date location Haplogroup                                                                                                                                       Kit # line ancestor b. date location FAMILY GROUP
Desc. of R.T. Thrift of GA 1772 Robert T. Thrift, via son Leroy before ~1780 Washington Co, GA, USA I1a 13 23 14 10 13 13 11 15 11 12 11 29                                                                                                               1772 Robert T. Thrift, via son Leroy before ~1780 Washington Co, GA, USA Desc. of R.T. Thrift of GA
134276 Robert T. Thrift, via son John before ~1780 Washington Co, GA, USA I1a 13 23 14 10 13 13 11 15 11 12 11 29 15 8 9 8 11 22 16 20 28 12 14 14 14 10 10 19 21 13 14 17 20 35 35 13 10 11 8 15 15 8 11 10 8 8 9 12 22 25 15 10 12 12 18 8 13 25 20 13 13 11 12 11 11 12 11 134276 Robert T. Thrift, via son John before ~1780 Washington Co, GA, USA
Modal marker values for I-M253-EE subclade of haplogroup I1a.
 (http://knordtvedt.home.bresnan.net/FounderHaps.xls)		 13 22 14 10 13 14 10 14 11 12 11 29 15 8 9 8 11 22 16 20 28 12 14 14 15 10 or 11 10 19 21 14 14         13 10 11 8 15 15 8 11 10 8 9 9 12 23 25 15 10 12 12 17 8 13 25 20 13 13 11 12 11 11 12 11        
(This is the haplogroup subclade which best matches descendants of Robert T. Thrift.  It was named EE because it seemed to be somewhat more common in I1 individuals of Eastern European descent)
mutation rate classifications are based on Tim Jantzen's rates
mutation rate: slow medium medium medium medium medium slow slow medium medium slow medium FAST medium medium slow slow medium slow medium FAST FAST FAST FAST FAST medium medium medium medium FAST medium FAST FAST FAST FAST medium slow slow slow slow slow slow slow slow slow medium medium slow medium medium medium slow slow slow FAST slow medium FAST medium medium slow slow slow medium slow slow slow
FTDNA Marker Order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 FTDNA Marker Order
Marker ID 393 390 19 / 394 391 385a 385b 426 388 439 389-1 392 389-2 458 459a 459b 455 454 447 437 448 449 464a 464b 464c 464d 460 H4 YCA IIa YCA IIb 456 607 576 570 CDYa CDYb 442 438 531 578 395s1a 395s1b 590 537 641 472 406s1 511 425 413a 413b 557 594 436 490 534 450 444 481 520 446 617 568 487 572 640 492 565 Marker ID
FAMILY GROUP Kit # line ancestor b. date location Haplogroup                                                                                                                                     Kit # line ancestor b. date location FAMILY GROUP
Desc. of Nat'l Thrift of VA 112459 Nathaniel Thrift, via son John ~1669 Old Rappahannock Co, Virginia, USA R1b1b2 13 24 14 11 11 14 12 12 11 13 13 29 17 9 10 11 11 25 15 18 29 15 15 17 17 10 11 17 23 16 15 17 17 38 38 12 12 11 9 15 16 8 10 10 8 10 10 12 23 24 16 10 12 12 15 8 12 22 20 13 12 11 13 11 11 12 12 112459 Nathaniel Thrift, via son John ~1669 Old Rappahannock Co, Virginia, USA Desc. of Nat'l Thrift of VA
164440 Thomas J. Thrift ~1816 Gloucester Co, Virginia, USA R1b1b2 13 24 14 11 11 14 12 12 11 13 13 29 17 9 10 11 11 25 15 18 29 15 15 17 17 10 11 17 23 16 15 17 17 37 39 12 12 11 9 15 16 8 10 10 8 10 10 12 23 24 16 10 12 12 15 8 12 22 20 13 12 11 13 11 11 12 12 164440 Thomas J. Thrift ~1816 Gloucester Co, Virginia, USA
117863 Nathaniel Thrift, via son George ~1669 Old Rappahannock Co, Virginia, USA R1b1b2 13 24 14 11 11 14 12 12 11 13 13 29 18 9 10 11 11 25 15 18 29 15 15 16 17 10 11 17 23 17 15 17 17 38 38 12 12 11 9 15 16 8 10 10 8 10 10 12 23 24 16 10 12 12 15 8 12 22 20 13 12 11 13 11 11 12 12 117863 Nathaniel Thrift, via son George ~1669 Old Rappahannock Co, Virginia, USA
                                                                                                                                                           
Desc. of unknown Thrift, presumed of VA 150062 Isham Thrift, via son Perry before 1759 lived Orange Co, North Carolina, USA;  born Dinwiddie Co, VA ? R1b1b2 13 23 14 11 14 15 12 12 13 13 13 29 19 9 10 11 11 25 15 19 29 15 15 17 17 11 11 19 23 14 15 18 18 36 37 12 13 11 9 15 16 8 10 10 8 10 10 12 23 23 16 10 12 12 14 8 12 22 19 13 12 12 13 11 11 12 12 150062 Isham Thrift, via son Perry before 1759 Orange Co, North Carolina, USA possibly b. Dinwiddie Co, VA  Desc. of Nat'l Thrift of VA
158348 William Thrift, via son John C. before 1761 Dinwiddie Co, Virginia, USA R1b1b2 13 23 14 11 14 15 12 12 13 13 13 29 20 9 10 11 11 25 15 19 29 15 15 17 17 11 11 19 23 14 15 18 18 36 37 12 13 11 9 15 16 8 10 10 8 10 10 12 23 23 16 10 12 12 14 8 12 22 19 13 12 12 13 11 11 12 12 158348 William Thrift before 1761 Dinwiddie Co, Virginia, USA
                                                                                                                                                           
ungrouped R1b families 55907 John Frith? & Realie Klinner via son John D. Frith ~1880? Alabama, USA R1b1b2 13 23 14 11 11 14 12 12 12 13 13 29 16 9 10 11 11 24 15 19 30 15 16 16 19 11 11 19 23 16 15 19 17 37 40 13 12 11 9 15 16 8 10 10 8 10 10 12 23 23 16 10 12 12 15 8 12 22 20 13 12 11 13 11 11 14 12 55907 John Frith? & Realie Klinner via son John D. Frith ~1880? South Carolina, USA ungrouped R1b families
                                                                                                                                                       
61429 James Madison Frith via son William A.J. Frith 1808 South Carolina, USA R1b1b2 13 25 14 11 11 15 12 12 12 13 13 29                                                                                                               61429 James Madison Frith via son William A.J. Frith 1808 South Carolina, USA
Modal marker values for Haplogroup R1b1b2  (Ysearch entry C7BED)   13 24 14 11 11 14 12 12 12 13 13 29 17 9 10 11 11 25 15 18 29 15 15 17 17 11 11 19 23 16 15 18 17 36 38 12 12 11 9 15 16 8 10 10 8 10 10 12 23 23 16 10 12 12 15 8 12 22 20 13 12 11 13 11 11 12 12      
                           
Note - MicroSoft Internet Explorer works best to view this page.  But only because     Distance from modal value     Distance from modal value  
the chart was made with Excel, a Microsoft product which produces NON-STANDARD HTML.     -1   +1       -1   +1  
The W3c web page validator finds over 4000 errors due to MicroSoft Excel's nonstandard HTML.     -2   +2       -2   +2  
Non-Microsoft browsers do not know how to display some of Excel's errors.       -3   +3       -3   +3  
                           
The R1b families above are displayed together to allow comparison with markers from the modal haplotype from haplogroup R1b1b2.  
However any family that is clearly a member of a SUBCLADE of R1b can be compared to the modal haplotype for their OWN subclade, for more specific results.
Jim Cullen's World Haplogroup & Haplo-I Subclade Predictor ( http://members.bex.net/jtcullen515/haplotest.htm ) predicts these are the most likely subclades for the indicated families:
          Nathaniel Thrift of Virginia:  R1b or R1b-North/South 2 (not a close match to either)
          Isham & William Thrift:  R1b
          John Frith? (& Realie Klinner) of Alabama:  R1b-Frisian (S21*) 
                    R1b-Frisian (S21*)  is a subclade of R1b1b2a1a1.    They are predicted to carry the S21 SNP marker but no known downstream SNP markers.
                    See  http://en.wikipedia.org/wiki/Haplogroup_R1b_(Y-DNA)#R1b1b2a1a1
          James Madison Frith of South Carolina:  Needs more marker results in order to determine the subclade