My sister, daughter and I all took DNA tests for fun. My sister and I show up on Ancestry as "close family," and share 1864 Centimorgans, and we do not share any relatives that my daughter and I share on one my father's side of the family.
I wonder whether she may be only a half sibling?
I am hesitant to ask to see her matches, and my other siblings are dead.
Any ideas how to pursue?