- Parents: The biological or adoptive parents of an individual are considered part of their kin group.
- Siblings: The biological siblings, including full siblings (born to the same parents) and half-siblings (born to the same parent but different mothers or fathers), are also members of the kin group.
- Children: The children of an individual, both biological and adopted, are considered part of their kin group.
- Grandparents: The parents of an individual's parents, commonly referred to as grandparents, are also considered members of the kin group.
- Grandchildren: The children of an individual's children, commonly referred to as grandchildren, are also considered members of the kin group.
- Aunts and uncles: The siblings of an individual's parents are referred to as aunts and uncles, and are considered part of the extended kin group.
- Cousins: The children of aunts and uncles, commonly known as cousins, are also considered members of the extended kin group.
These are just a few examples of the members that can be included in a kin group. The composition can be even broader, encompassing distant relatives such as great-grandparents, great-aunts and uncles, and second or third cousins. The extent and definition of kin relationships vary across different cultures and societies, shaping social structures and obligations within those communities.