Lisa and Maggie are Herb's...
Nieces
Bart is Homer's...
Son
Abe is Bart's...
Grandfather/Grandpa
Herb is Bart's...
Uncle
Homer and Marge are Bart's...
Parents
Bart, Lisa and Maggie are Marge's...
Children/Kids
Ling is Patty's...
Niece
Bart, Lisa and Maggie are Clancy's...
Grandchildren
Maggie is Homer's...
Daughter
Homer is Marge's...
Husband
Bart is Maggie's...
Brother
Lisa is Mona's...
Granddaughter
Bart, Lisa and Maggie are Ling's
Cousins
Marge is Homer's...
Wife
Selma and Patty are Lisa's...
Aunts
Bart is Jacqueline's...
Grandson
Mona is Bart's...
Grandmother/Grandma
Lisa is Maggie's...
Sister
Abe and Mona are Lisa's...
Grandparents
Bart is Herb's...
Nephew