Person X and Person Y share one common great-grandmother. The descent tree to Person X is via a first husband and the G grandmother. The descent tree to Person Y is via the marriage of a second husband and the same G grandmother.
My understanding is that second cousins share a set of two great-grandparents, and that half-second cousins share only one great-grandparent, rather than two.
Roots Magic identifies Person X and Person Y as half-second cousins.
On the other hand, Gramps’ Relationship Tool identifies Person X and Person Y as second cousins. FamilySearch also shows those two individuals as second cousins.
I would argue that the half is correct on the basis that to be full
cousins the gt. Grandmother and gt. Grandfather would have to be the
same for both.
Think of it in terms of DNA handed down
phil
It certainly seems to behave strangely or rather not consistently
for example
Result of Relationship calculator
“Leonard, Test2 is the second cousin of Berry, Test2. Their common
ancestor is Stratton, Annie Elizabeth Jowett.”
Seems to suggest a half relationship by not naming the partner of Annie
Elizabeth Stratton
Whereas
“Leonard, Female1 is the half-sister of Hopkins, Female2. Their common
ancestor is Stratton, Annie Elizabeth Jowett.”
This would appear to be correctly formatted
phil