Below is a table comparing Y-Chromosome DNA analysis results for Lanhams who have had them performed. Their line of descent to the immigrant ancestor (if known) is also shown. The alleles tested (and perhaps even the results) will differ because different vendors were used to perform the analysis.
| Howard Lanham | Michael Lanham | Dale Lanham | Cliff Lanham | Thomas Lannom | |
|---|---|---|---|---|---|
| Haplo- group | R1b | R1b | R1b1b2 | R1b1b2 | Not Stated |
| DYS 19a | 14 | 14 | 14 | 14 | 15 |
| DYS 19b | - | - | - | - | - |
| DYS 385a | 11 | 11 | 11 | 11 | 16 |
| DYS 385b | 14 | 14 | 14 | 14 | 19 |
| DYS 388 | 12 | 12 | 12 | 12 | 14 |
| DYS 389I | 12 | 12 | 12 | 12 | 13 |
| DYS 389II | 28 | 28 | 28 | 28 | 29 |
| DYS 390 | 25 | 25 | 25 | 25 | 23 |
| DYS 391 | 11 | 11 | 11 | 11 | 9 |
| DYS 392 | 13 | 13 | 13 | 13 | 11 |
| DYS 393 | 13 | 13 | 13 | 13 | 12 |
| DYS 426 | 12 | 12 | 12 | 12 | 11 |
| DYS 437 | 15 | 15 | 15 | 15 | 14 |
| DYS 438 | 12 | NT | 12 | 12 | 9 |
| DYS 439 | 12 | 12 | 12 | 12 | 13 |
| DYS 441 | 14 | NT | NT | NT | NT |
| DYS 442 | 17 note 1 | NT | 12 | 12 | 12 |
| DYS 444 | 13 | NT | NT | NT | NT |
| DYS 445 | 12 | NT | NT | NT | NT |
| DYS 446 | 12 | NT | NT | NT | NT |
| DYS 447 | 25 | 25 | 25 | 25 | 26 |
| DYS 448 | 19 | 19 | 19 | 19 | 21 |
| DYS 449 | 29 | 29 | 29 | 29 | 31 |
| DYS 452 | 30 | NT | NT | NT | NT |
| DYS 454 | 11 | 11 | 11 | 11 | 11 |
| DYS 455 | 11 | 11 | 11 | 11 | 11 |
| DYS 456 | 16 | NT | 16 | 16 | 15 |
| DYS 458 | 17 | 17 | 17 | 17 | 15 |
| DYS 459a | 10 | 10 | 9 | 9 | 8 |
| DYS 459b | 9 | 9 | 10 | 10 | 9 |
| DYS 460 | 11 | NT | 11 | 11 | 10 |
| DYS 461 | 12 | NT | NT | NT | NT |
| DYS 462 | 11 | NT | NT | NT | NT |
| DYS 463 | 24 | NT | NT | NT | NT |
| DYS 464a | 15 | 15 | 15 | 15 | 11 |
| DYS 464b | 15 | 15 | 15 | 15 | 13 |
| DYS 464c | 15 | 15 | 15 | 15 | 15 |
| DYS 464d | 16 | 17 | 17 | 17 | 16 |
| DYS 464e | - | - | - | - | - |
| DYS 464f | - | - | - | - | - |
| DYS 570 | NT | NT | 17 | 17 | 19 |
| DYS 576 | NT | NT | 17 | 17 | 15 |
| DYS 607 | NT | NT | 15 | 15 | 14 |
| DYS 635 | 24 | NT | NT | NT | NT |
| CDYa | NT | NT | 39 | 39 | 36 |
| CDYb | NT | NT | 40 | 39 | 37 |
| GGAAT1 B07 | 10 | NT | NT | NT | NT |
| YCAIIa | 19 | NT | 19 | 19 | 19 |
| YCAIIb | 24 | NT | 24 | 24 | 22 |
| Y-GATA A10 | 15 | NT | NT | NT | NT |
| Y-GATA H4 | 12 | NT | 11 | 12 | 10 |
| Howard Gary Lanham | Michael Duane Lanham | Allen Dale Lanham | Clifford Wayne Lanham | Thomas Wayne Lannom | |
|---|---|---|---|---|---|
| father | Howard Carl Lanham | Michael Duane Lanham | George Wilson Lanham 1916-1979 | Oran Stroud Lanham 1916-1996 | James Wayne Lannom 1943- |
| grandfather | John Theodore Lanham 1894-1970 | Rayford Homer Lanham 1919-2004 | Alva Walton Lanham 1889-1969 | Thomas Berry Lanham 1882-1971 | Francis Wayne Lannom 1921-1990 |
| great-grand- father | John Thomas Lanham 1866-1959 | Thomas Calvon Lanham 1889-1964 | Hurley Monroe Lanham 1859-1890 | Hiram Demarcus Lanham 1845-1920 | Bonner Ward Lannom 1891-1945 |
| gg-grand- father | Stephen Decatur Lanham c. 1836-1871 | William A. Lanham 1867-1945 | William Bradford Lanham 1822-1885 | Curtis Harden Lanham 1813-1897 | Eldridge A. Lannom 1869-1919 |
| ggg-grand- father | Benjamin Lanham c. 1800-pre1850 | John H. Lanham c. 1833-1915 | Richard Lanham 1790-1852 | Sylvester Lanham 1790-1856 | William A. Lannom 1844-1893 |
| gggg-grand- father | Lewis Lanham 1757-1822 | Joseph Lanham c. 1807-prior 1870 | Thomas Lanham 1757-1840 | Thomas Lanham 1757-1840 | Thomas Lannom c.1818-aft.1893 |
| ggggg-grand- father | Unknown | Joseph Lanham c. 1775-1828 | Stephen Lanham 1726-1806 | Stephen Lanham 1726-1806 | Nathan Lannom c.1789-1876 |
| gggggg-grand- father | Unknown | Unknown | Thomas Lanham c.1695-aft.1768 | Thomas Lanham c.1695-aft.1768 | Unknown |
| ggggggg-grand- father | Unknown | Unknown | John Lanham Immigrant 1661-aft.1746 | John Lanham Immigrant 1661-aft.1746 | Unknown |
