Other Willis Groups of Dorchester and Caroline Counties auDNA, Top 50 matches

Ancestry user KGBC73 can trace her Willis lineage back to a Sarah Ann Willis married to Lewis Whittington. They are in the 1860 census records of Dorchester County,  Maryland.   Stepping back to the previous census,  Sarah is in the 1850 Census records, also of Dorchester County,  Maryland, in the household of a John Willis,  married to Sally LNU.  I searched KGCC73's  DNA match list on the surname Willis and glanced down the results list of the top 100 names.   I do not recognize any of the matches as being of my MARYLAND GROUP.   So,  it is possible that KGBC73's ancestor, Sarah, is of some other group of Willis living in Dorchester Co in the mid 1800s.   Therefore,  in examining her match list in detail,  we might get a good feel for many of the Willis ancestors who belong to this other Willis group.  Using this info,  we can separate out those Willis in census records who are of this other group vs. those of my MARYLAND GROUP.

KGBC73 1/2019
1. EC - Mercy b 1690 Bridgewater, Mass (no shared matches)
2. HeatherMiller - John b 1802 Maryland m Sally LNU (no shared matches)
3. MicheleLaughingHouse - Richard b 1656 Middlesex, Va (no shared matches)
4. mary11151949 - Benjamin b. 1679 Bristol, Mass (no shared matches)
5. servantes54 - Nathaniel b 1637 Plymouth,  Mass (no shared matches)
6. JenRedhead - Joseph b 1742 Wiltshire, UK (no shared matches)
7. EC - Mercy b 1690 Bridgewater, Mass (no shared matches)
8. CharlotteCrampton - George b 1842 Ireland (no shared matches)
9. SCowen76 - Henry b 1691 Gloucester, Va (no shared matches)
10. DeMitchell54 - locked
11. EGierke2670 - Francis b. 1724 Gloucester, Va (no shared matches)
12. JamesMoore - locked
13. GladysSmithGlenn - Richard b 1656 Middlesex, Va (no shared matches)
14. RG - Sarah b 1700 Perquimans, NC (no shared matches)
15. CharlesPhilion - Stoughton b 1769, Plymouth, Mass (no shared matches)
16. amyjo913 - Dessie b 1866 Henderson, Tenn m William James (no shared matches)
17. ChadWillis - Thomas b 1864 UK (no shared matches)
18. EE - Joanna b 1675 Va (no shared matches)
19. CaralynOlson - Jessie d 1990 Los Angeles, Calif (no shared matches)
20. RS - Emma b 1854 NY (no shared matches)
21. FP - William b 1717 Dorchester Co, Md  MARYLAND GROUP (no shared matches)
22. JustinAbner - William b 1847 (no other info)
23. JoSpeake - Elizabeth b 1799 NC (no shared matches)
24. ChelseaJacobs - Mary b 1905 Santa Fe,  NM (no shared matches)
25. BW - Herbert b 1911 Jackson Co, Ill (no shared matches)
26. tlowenthal66 - William T b 1845 Norris City, Ill (no shared matches)
27. JoanWilson - Major b 1799 Craven Co, NC (likely Buck or Newman match)
28. KC - Benjamin b 1718 Bristol, Mass (no shared matches)
29. AB - Elizabeth b 1692 Henrico, Va (no shared matches)
30. CR - Elizabeth b 1799 NC (no shared matches)
31. katharinealbright - Margaret b 1757 (no shared matches)
32. LM - Mary b 1798 Hawkins, Tenn (no shared matches)
33. VeraClark - Elizabeth b 1799 NC (no shared matches)
34. PeteSorenson - Catherine b 1828 Ohio (no shared matches)
35. MichelleBrown - Katherine b 1886 Calif (no shared matches)
36. RBaxter - locked
37. aallen1 - no Willis
38. VA - Major b 1779 Craven Co (likely a Newman match)
39. DW - Sarah b 1651 Bridgewater, Mass (no shared matches)
40. templar8777 - NORTH CAROLINA GROUP
41. kaytifowler72 - Jennie b 1761 Ireland (no shared matches)
42. BarryCroft - William Henry b 1842 Middlesex, UK (no shared matches)
43. TS - Emily b 1791 Claiborne Co, Miss (no shared matches)
44. KH - locked
45. Jclendenin01 - Mahala b 1808 Spartenburg, SC (no shared matches)
46. GN - Grace b 1658 Wiltshire, UK (likely a Miller match)
47. MelodyBaily00 - John b 1802 Ireland (no shared matches)
48. AD - Susanna b 1774 Lincoln, NC (no shared matches)
49. JRPL - locked
50. CrystalGeorge - Liza b 1820 UK (no shared matches)

Something's wrong.  Usually,  after outlining the top 50 matches on a surname,  then stepping back and looking at the list,  you'll see some kind of common pattern around a time and geographic area.   In this case,  it looked as if the Willis ancestor had ties back to late 1600s, early 1700 Mass.  However,  its also important that you see matching segments,  inter-relationships among the people with that common pattern.   I'm not seeing it here.   None of the people above,  who have the Willis from Mass,  have segments in common.  Once that became clear,  I proceeded down the entire list,  looking for segments in common anywhere among the list that might be coming from Willis.  There was nothing.   The only plausible conclusion here is a biological break somewhere down the branch where the Willis ancestor resides.   These matches are not going to be helpful in achieving what we had hoped.