Figure: 1 TAC §81.114(b)
1st Degree
2nd Degree
3rd Degree
Consanguinity Blood Relation
Father Mother Son Daughter
Grandfather Grandmother Grandson Granddaughter Brother Sister
Aunt Uncle Great-grandson Great-granddaughter Great-grandfather Great-grandmother Niece Nephew
Affinity Relation by Marriage
Father Mother Daughter Son
Spouse's Grandfather Spouse's Grandmother Spouse's Granddaughter Spouse's Grandson Spouse's Sister Spouse's Brother