About us
| I am making comparisons between myself (Kit #98898) and each other individual in the Gysi Project. While most men in this project are having the Y-DNA37 markers test, I and a couple others have taken the Y-DNA67 or 111 marker tests. Comparisons between individuals can be made only for the markers both individuals have tested. The table names an immigrant or most distant ancestor, the number of markers tested, and the genetic distance (the number of non-matching alleles). Mutation rates differ for each of the alleles. Using the formulas developed by Family Tree DNA we can calculate the probability of having a common ancestor within a given number of generations. I have reported these percentages in the table below. | ||||||||||||
| Based on Previous Research | Family Tree DNA Info | Probability of MRCA within X Generations | ||||||||||
| Kit # | Ancestor | Markers Tested | Genetic Distance | X=6 | X=8 | X=10 | X=12 | X=14 | X=16 | X=18 | X=20 | |
| Group 1. Swiss R-L48: Hölstein Descendants of Johann Conradt Giese (1718-1802) | ||||||||||||
| 99030 | Johann Conradt Giese, Sr. |
37 | 0 | 36% | 74% | 90% | 96% | 98% | 99% | 100% | 100% | |
| 100828 | Johann Conradt Giese, Sr. |
37 | 1 | 27% | 63% | 81% | 91% | 96% | 98% | 99% | 100% | |
| 100988 | Conradt's son Johannes Jacob Giese | 37 | 2 | 19% | 50% | 71% | 84% | 91% | 95% | 98% | 99% | |
| Descendants of Ulrich Gysin (b. ~1670) | ||||||||||||
| 162669 | Heinrich (Henry) Giesy (1760-~1845) - MD |
111 |
1 |
36% | 74% | 89% | 96% | 98% | 99% | 100% | 100% | |
| 162670 | Thomas Geesey (1834-1909) - MD |
111 |
3 |
12% | 35% | 56% | 72% |
83% | 90% | 94% | 97% | |
| 373453 | Johann (Hans) Ulrich Gysie (1754-1834) - OH |
37 | 2 | 27% | 63% | 82% | 91% | 96% | 98% | 99% | 100% | |
|
Descendants of a Casey lineage in North Carolina and Kentucky | ||||||||||||
| 331320 | Casey | 37 | 0 | 36% | 74% | 90% | 96% | 98% | 99% | 100% | 100% | |
| 180007 | John Casey (1784 - 18??) | 67 | 1 | 27% | 62% | 81% | 91% | 96% | 98% | 99% | 100% | |
| B706184 | Robert Casey (b. ~1770) | 111 | 2 |
39% | 79% | 94% | 98% | 99% | 100% | 100% | 100% | |
|
Descendant of a Stevenson lineage in Pennsylvania | ||||||||||||
| 331320 | James Stevenson (1802-1870) | 67 | 5 | 33% | 61% | 79% | 89% | 95% | 98% | 99% | 99% | |
|
Group 2. Swiss R-M312: Oltingen | ||||||||||||
| 62906 |
Jacob Arnold Gysin (1876-1953) | 111 | 52 |
- | - | - | - | - | - | - | - | |
| Differences compared with Jacob Arnold Gysin's descendant | ||||||||||||
| 104317 | Johann Caspar Giesse |
67 | 2 | 94% | 98% | 99% | 100% | 100% | 100% | 100% | 100% | |
| 251328 | Andreas Giesy (1791-1860) | 37 | 3 |
75% | 87% | 94% | 97% |
99% |
99% | 100% | 100% | |
|
Group 3. Swiss/French R-M512 lineage | ||||||||||||
| 363974 | Jacob Geise (b 1777) - Berks Co, PA |
67 | 49 | - | - | - | - | - | - | - | - | |
| Differences compared with Jacob Giese's descendant | ||||||||||||
| 214440 | Jacob Gysi (1681-1749) - PA |
37 | 26 |
0% | 0% | <1% | 1% | 2% | 5% | 9% | 15% | |
|
Group 4. Pennsylvania J-M172 Group | ||||||||||||
| 255230 | Conrad Keesey (b. abt 1850), Lancaster Co., PA |
37 | 37 | - | - | - | - | - | - | - | - | |
| Differences compared with Conrad Keesey's descendant | ||||||||||||
| 930556 |
Peter Geesey (1828-1892), York Co., PA |
111 | 12 |
6% |
15% |
29% |
43% |
58% |
70% |
79% |
86% | |
|
Group 5. Pennsylvania R-M173 Group | ||||||||||||
| 191879 | John A. Geesey (1797-1879) born in Lancaster Co., PA, died in Allamakee Co., IA |
37 | 19 | - | - | - | - | - | - | - | - | |
| Differences compared with John A. Geesey's descendant | ||||||||||||
| 190180 | William Keesey (1810-1893), Schuylkill Co., PA | 37 | 7 | 0.1% | 1.4% | 4.4% | 9.6% | 17% | 27% | 38% | 49% | |
| 196195 | William Keesey (1810-1893), Schuylkill Co., PA | 37 | 7 | 0.1% | 1.4% | 4.4% | 9.6% | 17% | 27% | 38% | 49% | |