I am deadlocked in the identification of my great-grandfather.
A DNA test has identified an individual (in Denmark) who is suggested to be a near-relation of mine, but he has not responded to attempts to contact him.
However, I wonder if the relationship is to a sibling of Cecil Zohrab Ede (CZ Ede). CZ Ede's younger brother emigrated to the US and Australia. There was an older sister who disappears, and also a younger sister (see this FamilySearch census record for 1871).
How can I determine whether one of these sisters married the ancestors of my DNA match in Denmark?