I checked the add events section and there are repeatitions found in the selections as seen on the attached file.
You are right, there was repetitions in the events menu.
This has been fixed in the last release (version 0.8).
Also how would you reflect half siblings, Separated couples, surrogate parent who is a relative, unmarried couple but have children together?
You can take a look at this help page: github.com/michelesalvador/FamilyGem/wiki/Half-siblings