Two more Nicholson matches at Ancestry DNA.
The first is with T.L. His ancestor Moses P. Nicholson migrated to Indiana in the 1830s, long before my great-great-grandmother Harriet Nicholson was born. T.L. has no other Iredell County lines, underscoring the unlikelihood that our match is through some other line.
The second is R.H., who also matches T.L. R.H. is descended from a first-cousin marriage between grandchildren of both of John S. Nicholson‘s wives, as am I.
Unfortunately, Ancestry has a hard time interpreting matching trees that involve multiple spouses and fathers and sons with the same names, and these charts are not quite right.
Scuffalong: Genealogy. 
DNA belongs to one person in an association with other persons. Names are labels. Ancestry is a label. DNA…. BELIEVE. I HAVE OFTEN HEARD STATEMENTS OF OLDER PERSONS: example….. My mother is Mary Jane Lewis, They told me that My father is James Earl Lewis. He is married to my mother.